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Best Choice CheeMuii 
CheeMuii 23 PCS Brass DOT Air Line Fittings Kit 1/4 3/8 1/2 DOT Quick Connect Air Fittings Straight Union Push to Connec 23 PCS PACKAGE: The 23 pcs DOT air brake fittings kit includes: 8 pcs 1/4 inch straight union DOT fittings, 8 pcs 3/8 inBest Value X AUTOHAUX 
X AUTOHAUX 5mm Brass Barb Hose Fitting Straight Union Connector for Air Water Gas Oil 5pcs Made of brass for corrosion resistance, ductility at high temperatures, and low magnetic permeabilityCheeMuii 
CheeMuii 35 PCS Brass DOT Air Line Fittings Kit 1/4 3/8 1/2 DOT Quick Connect Air Fittings Straight & Tee Union Push to 【35 PCS PACKAGE】- The 35 pcs DOT air brake fittings kit includes: 8 pcs 1/4 inch straight union DOT fittings, 8 pcs 3/8BroLuka 
304 Stainless Steel Union Pipe Fitting, 1 Inch BSP Female x 1 Inch BSP Female for Water, Oil, Gas Pipe Connections 【 Detachable connection 】 Easily achieve quick connection and separation of 1-inch BSP internal thread pipes. The disassEMSea 
EMSea 2pcs 12mm to 10mm Barb Reducer Tube Mender Splicer Joiner Union Brass Fitting Made of brass for corrosion resistance, ductility at high temperatures, and low magnetic permeability.HASAOMOI 
HASAOMOI 5PCS Air Brake Nylon Tubing Brass Union Fitting, 3/8" Tube OD x 1/4" NPT Thread Air Compression Straight Union High Quality Precision Brass: 3/8" Tube OD x 1/4" NPT Thread straight DOT approved fittings are made of high quality solJntahecg 
4mm Straight Push to Connect Fittings, Quick Release Pneumatic Connector Air Line Fitting Plastic Union Pipe Tube Fittin Efficient Fluid Handling: This Straight Quick Fitting, model PU-4, accommodates 4mm outer diameter tubes and is optimizeAsheredetella 1/4 Brake Line Pressure Fittings, 12 Pieces 7/16 Inch-24 Threads Brass Brake Line Fitting Assortment for 1/4 Inch Brake High Quality Material: Brake line fitting is made of high quality brass with anti-rust and anti-corrosion technology, duAcbbMNS AcbbMNS 10Pcs 12mm (1/2 inch) Push to Connect Fittings, Y-Shape Pneumatic Connector Quick Release Air Line Fitting Plast 【Package Included】You will get 10pcs 12mm(1/2") Y-shape Union Connectors, fit for OD 1/2" tube. Suitable for PU / PA / PAcbbMNS AcbbMNS 10Pcs 12mm (1/2 inch) Elbow Union Connectors Push to Connect Fitting, Plastic Air Line Pneumatic Fitting Quick R 【Package Included】You will get 10pcs 12mm(1/2") Elbow Union Connectors, fit for OD 1/2" tube. Suitable for PU / PA / PEAcbbMNS AcbbMNS 10Pcs T Shape Tee Pneumatic Connector, 6mm (1/4 inch) Push to Connect Fittings, Quick Release Air Line Fitting P 【Package Included】You will get 10pcs 6mm(1/4") Tee Union Connectors, fit for OD 1/4" tube. Suitable for PU / PA / PE / PGeneric 12Pcs/6-6mm Plastic Barbed Hose Connector, Straight Joiner Union Fitting, Leak Proof Tubing Coupler for Water Air Fuel L Made from high quality durable plastic, smooth surface without burrs or sharp edges. Strong, wear-resistant and corrosioAcbbMNS AcbbMNS 5Pcs T Shape Tee Pneumatic Connector, 8mm (5/16 inch) Push to Connect Fittings, Quick Release Air Line Fitting P 【Package Included】You will get 5pcs 8mm(5/16") Tee Union Connectors, fit for OD 5/16" tube. Suitable for PU / PA / PE /Yitoking 3/16 Brake Line Fittings - Premium 3/8' - 24 Threads Brake Fittings Assortment for 3/16' Brake Line Tube (6 Unions, 12 N INVERTED FLARE UNION: Any 2 (3/16 inch) brake lines can be easy to joined with Muhize unions. both the sizes for unionsEMSea EMSea 2pcs 8mm to 6mm Barb Reducer Tube Mender Splicer Joiner Union Brass Fitting Made of brass for corrosion resistance, ductility at high temperatures, and low magnetic permeability.uxcell uxcell Straight Pneumatic Push to Quick Connect Fittings Bulkhead Union 8mm Tube OD X 8mm Tube OD 2pcs Product Name : push to quick fitting; Tube Size : 8mm Tube OD X 8mm Tube ODuxcell uxcell Straight Pneumatic Push to Quick Connect Fittings Bulkhead Union 6mm Tube OD X 6mm Tube OD 2pcs Product Name : push to quick fitting; Tube Size : 6mm Tube OD X 6mm Tube ODGermerse Brake Pipe Fitting Union, 2Pcs/Set 3/8in UNF Unions Female Male Brake Tube Joiners Antirust for Auto Easy Installation: Easy to install, no complicated tools required, convenient to use, save time and effort.ECSiNG ECSiNG 3pcs Union Fitting O-Ring Leak Stop Ring 6020018 350099 Outer Diameter 56mm Thickness 3.5mm Compatible with Penta Size: Outer diameter: 56mm. Thickness: 3.5mm.Ailbiuko Ailbiuko 53 PCS DOT Brass Compression Air Brake Nylon Tubing Fittings,Straight Union Fitting Assortment Kit 1/4" 1/8" 3/ STRAIGHT UNION KIT: The dot air compression union fittings kit package includes 53pcs : 4 pcs 1/8" x 1/8" compression tuTopHomer PVC Union Coupling, Quick Connector Slip PVC Pipe Fitting Adapter for Swimming Pools and Outdoor Plumbing, DN50 / 2" 【Pressure Resistance】PVC union pipe fittings are made of thickened material to increase their performance, it can withstBroLuka Brass Compression Tube Fitting, Female Compression Union Straight Connector for Fuel, Air, Liquid, Oil, Gas, Vacuum Line 【 Welded-free connection 】 Brass compression straight-through pipe joint, which can achieve reliable connection of metalVis 1/4" Barb Tee, Brass Hose Barbed T Union Fitting, Hose ID 1/4" Barb x 1/4" Barb x 1/4" Barb, Pack of 5 1/4" barb tee to connect 1/4" I.D. hose,we can provide customized orders,including oem.BIGTEDDY 3 Way Brake T Piece Tee and 3-Male Nuts Short Union Metric M10 3/16 Pipe-10mm *3 Way T piece & 3 M10 male short nuts. 1 x 3 Way brake pipe union. For use with 3/16" pipeFrienda Frienda 18 Pieces 3/8 Inch-24 Threads Brake Line Fittings Assortment for 3/16 Inch Tube (6 Unions, 12 Nuts) Fit for: the unions measures approx. 0.6 x 0.9 inch, the nut measures approx. 0.67 x 3/8 inch, fit for most common inverboeray Boeray 26pcs Quick Connect Brass DOT Air Line Fittings Straight Union 1/4” 3/8” 1/2” Tube Push to Connect Fittings Air S 【Straight Union Kit】26pcs DOT air line fittings kit: 10pcs 1/4” OD union + 10pcs 3/8” OD union + 6pcs 1/2” OD union quicBOXOB BOXOB 2pcs 350157 Pool Pump Union Parts, Replacement Kit Unions Fittings Compatible with Pentair Superflo & Superflo Var Product Included: You will receive 2 pieces of pool pump unions, 2 screw caps, and 2 gaskets to meet your replacement neAcbbMNS AcbbMNS 10Pcs Brass Hose Barb Reducer Fittings, 8mm to 6mm Barb Hose Fitting Adapter Straight Union Connector for Air Wa 【Package Included】10-Pack 8mm barb OD to 6mm barb OD Brass Hose Barb Reducer Fittings.Nikovoke 304 Stainless Steel Union, 1/2" & 1" BSP Female Threaded Pipe Fitting for Water, Oil, Gas Lines and Plumbing Systems [Specifications] 1‑inch BSP external thread and 1/2‑inch BSP; Working pressure: 0 – 2 MPa; Operating temperature: 0 – 18AcbbMNS AcbbMNS 10Pcs 8mm (5/16 inch) Straight Push to Connect Fittings, Quick Release Pneumatic Connector Air Line Fitting Plas 【Package Included】You will get 10pcs 8mm(5/16") Straight Union Connectors, fit for OD 5/16" tube. Suitable for PU / PA /NOVINO Air Line Service Kit for Air Spring Bag Suspension with Fittings, Air Line Kit Includes 20 Feet Air Line Tubing,Schrader The air line service kit with 1/4 inch air line tubing and airbag suspension parts fittings to replace broken air bag aiBENLIUDH BENLIUDH 3/4 inch PVC Pipe Union Fittings, PVC Connectors Female Thread Coupling (3/4", 4pcs) Material: PVC pipe fittings are made of heavy duty high quality PVC with high compressive strength and weather resistancSagaSave 50mm PVC Pipe Fitting Union Connector Solvent Socket, Grey Plumbing Straight Joint Quick Connector [6 Size Options] The PVC union pipe fittings are available in 6 IDs, which are 1/2" (20mm), 3/4" (25mm), 1" (32mm), 1-1/EVIL ENERGY EVIL ENERGY 6AN Male to Male Flare Coupler Union Straight Fuel Hose Adapter Fitting Black 4PCS Size: Thread size of 6AN male coupler is 9/16-18 UNF.17% Off BroLuka Brass Compression Tube Fitting, Female Compression Union Straight Connector for Fuel, Air, Liquid, Oil, Gas, Vacuum Line 【 Welded-free connection 】 Brass compression straight-through pipe joint, which can achieve reliable connection of metal23% Off Nikovoke 2 Pcs Push Fit Pneumatic Reducer Fittings, Straight Union Quick Connect Tube Connectors for Compressor, Vacuum Systems, 【One push and it connects automatically】No tools required to complete the connection and reconfiguration of industrial pBriny River Briny River 4 Set 6-M8-6 6mm Dual Ended Plastic Hose Barb Bulkhead Fitting with Gasket for Inner Diameter 6mm Hose Hex B Specifications:6-M8-6: with M8 nut and gasket. Suitable for inner diameter 6mm hose . Measurement size error 0.3mm.ERGAOBOY ERGAOBOY 5Pcs 8MM to 8MM Brass Hose Barb Thru-Bulk Bulkhead Fitting, Straight Hex Union Fitting with 10Pcs Hose Clamps Size：8MM Hose Barb Thru-Bulk Bulkhead Fitting, Working pressure and temperature range: 0-1 MPA and -50-120°C.EVIL ENERGY Evil Energy 6AN Female to 6AN Female Straight Swivel Coupler Union Fitting Adapter Aluminum Black 2PCS Size: The fitting is female AN6 to female AN6. The thread size is 9/16-18 UNF.AC PERFORMANCE Male to Male Hose Fittings 10AN flare union 90 deg AN10 to AN10, 7/8" x 14 UNF, 90 deg, male flare unionX AUTOHAUX X AUTOHAUX 15pcs Motorcycle Brake Line Tube Fittings 3/8"-24 Threads Assortment for 3/16" Hydraulic Brake Lines Union Du [Size] Thread Size: M10x1.0, Outer Threads Size: 3/8"-24 Threads Assortment for 3/16", Total Size: 15x10mm / 0.59"x0.39"X AUTOHAUX X AUTOHAUX 6mm Brass Barb Hose Fitting Straight Union Connector for Air Water Gas Oil 5pcs Made of brass for corrosion resistance, ductility at high temperatures, and low magnetic permeabilityVGOL VGOL 5 PCS 1/2inch Hose Barb Thru Bulk Bulkhead Fitting Plastic Hex Straight Union Adapter Barb Pipe Connectors for Wate ?Compatibility?: Suitable for 1/2-inch inner diameter hoses.X AUTOHAUX X AUTOHAUX 8mm Brass Barb Hose Fitting Straight Union Connector for Air Water Gas Oil 5pcs Made of brass for corrosion resistance, ductility at high temperatures, and low magnetic permeabilityNDNCZDHC an Fittings, 4Pcs AN6 to AN6 Male to Male Fitting Fuel Line Adapter Straight Aluminum Black Anodized for Flare Union Fitting Size: This is a heavy duty 6AN male to AN6 flare union coupler, especially designed to match fuel hose and hoseDorman Dorman 800-142 Fuel Line Compression Union - 5/16 In. Steel Line, 3 Pack Available in many different styles, including elbows, union, and teesTianTianUp 1/2" Brass Hose Barb Thru-Bulk Bulkhead Fitting,Straight Hex Union Fitting for Air Water Fuel 2 Pcs The two ends of the product are thick hexagons, forming a partition function. Metal washers are available for larger opeECSiNG ECSiNG 5X 5mm Brass Straight Compression Fitting Union Hex Head for 3/16" Automotive Brake Line Material: Brass; Width at both ends: 10.8mm; Width in the middle: 10mm; Tube diameter: 5mm; Total length: 30mm; DiagonalBroLuka 2 Pcs 304 Stainless Steel Reducing Hose Barb Adapter, 13mm to 10mm Barb Splicer Union Mender for Water, Fluid, and Air L [Specifications] Operating range: 0‑2 MPa, temperature 0‑180°C. Sizes: 13mm‑10mm, 12mm‑8mm, 8mm‑6mm. Package includes 219% Off Metalwork Metalwork 304 Stainless Steel Compression Tube Fitting Union 5/8" OD x 5/8" OD Coupling (2 Pcs) Union for connecting and disconnecting two pipes more easily than couplingssmseace 26Pack 3/16 Inch Brake line kit Include 25 FT Copper-Plated Brake Lines with Fitting(16pcs Fittings,2pcs Union+4pcs Nut) 3/16 Inch 25 FT Brake Line Kit: Transform your brake line installation experience with our comprehensive kit! FeaturingJoywayus Joywayus 27/32" 21mm ID Hose Barb Tee T 3 Way Union Fitting Intersection/Split Brass Water/Fuel/Air Can be easily connected to the hose.uxcell uxcell 25mm Slip x 25mm Slip Metric PVC Pipe Fitting Union Solvent Socket Quick Connector 25mm Slip x 25mm SlipLophtnix Lophtnix 304 Stainless Steel Compression Tube Fitting Union 10mm OD x 10mm OD, Pack of 2 Union for connecting and disconnecting two pipes more easily than couplings.Nikovoke Brass Compression Tube Fitting, 6MM OD X 6MM OD Female Thread Union Straight Connector [Stable Performance] The precise threading ensures tight fitting between components, offering strong load-bearing capaciSagaSave 40mm PVC Pipe Fitting Union Connector Solvent Socket, Grey Plumbing Straight Joint Quick Connector [6 Size Options] The PVC union pipe fittings are available in 6 IDs, which are 1/2" (20mm), 3/4" (25mm), 1" (32mm), 1-1/Xlihdzum Xlihdzum 1/4" Refrigerant Flare Union Nut 1 Pc - Brass Refrigerant Line Connector for 1/4 Inch OD Copper Tube (6.35mm), 【Precision 1/4" Flare Specification】This union nut is manufactured to the standard 1/4-inch flare thread specification.uxcell uxcell Plastic Straight Union Push to Connect Tube Fitting 10mm OD Push Fit Lock 10pcs Pack of 10pcs 10mm OD plastic straight tube fitting23% Off Generic Plastic Push to Connect Straight Union Pipe Tube Reducer Fitting, 6mm OD x 8mm OD, Reducing Coupler Straight Pneumatic C Reducing coupler for connecting two pipes with different diametersOreilet 10Pcs Hose Barb, 90 Degree Elbow L Fitting, Equal Barbed Joint Splicer Mender Adapter Union Adapter, for Fish Tank Pond OR ODOR: Elbow hose barb is , odorless, pure in texture. Possess good surface stiffness and scratchBroLuka 2Pcs Push Fit Reducer Fittings, Quick Connect Pneumatic Straight Union for Air Compressor and Vacuum Pump Lines 【Swivel Connector】The 360° swivel straight connector design offers flexible connection and prevents hose tangling. It alCNRAQR CNRAQR 6AN Male to Male Straight Bulkhead Flare Fitting Union Adapter Aluminum Black 2Pcs 【High Quality Material】The Straight Bulkhead Flare (including the Body, Lock Nut, Sleeve & Nut) are all made from light-Liimevvon 20 pcs 3/8" to 1/4" OD Straight Union Reducer, Quick Connect, Push Fit Water Tube Fitting for RO Reverse Osmosis, Water Package Quantity: 20 packBe In Your Mind Be In Your Mind 5pcs 6mm Tube OD Air Flow Control Valve Union Pneumatic Speed Control Flow Controller Throttle Valve Spe The throttle valve hose joint is made of plastic and copper, which has high compressive strength, high stability, corrosBe In Your Mind Be In Your Mind 5pcs 8mm Tube OD Air Flow Control Valve Union Pneumatic Speed Control Flow Controller Throttle Valve Spe The throttle valve hose joint is made of plastic and copper, which has high compressive strength, high stability, corrosLTWFITTING LTWFITTING 1/4" OD Compression Union,Brass Compression Fitting(Pack of 30) Type: Compression UnionJohn Guest JG Speedfit PEI0220P 1/2-Inch CTS Union Tee NO TOOLS REQUIRED: Push-to-connect fittings provide a simple, quick, reliable, leak-free connection with no tools requirNikovoke Brass Compression Tube Fitting, 8MM OD X 8MM OD Female Thread Union Straight Connector [Stable Performance] The precise threading ensures tight fitting between components, offering strong load-bearing capaciHUHAXIXI Tube Compression Union Fitting 1/8 3/8 1/2inch BSPP, Male Female 4-16mm Brass Pipe Fitting Elbow 1 piece(PC,4mm,M5) Secure Connection: Provides reliable sealing for leak preventionHUHAXIXI Tube Compression Union Fitting 1/8 3/8 1/2inch BSPP, Male Female 4-16mm Brass Pipe Fitting Elbow 1 piece(PC,6mm,M5) Secure Connection: Provides reliable sealing for leak preventionHUHAXIXI Tube Compression Union Fitting 1/8 3/8 1/2inch BSPP, Male Female 4-16mm Brass Pipe Fitting Elbow 1 piece(PC,4mm,1/8inch) Secure Connection: Provides reliable sealing for leak preventionHUHAXIXI Tube Compression Union Fitting 1/8 3/8 1/2inch BSPP, Male Female 4-16mm Brass Pipe Fitting Elbow 1 piece(PC,10mm,3/8inch Secure Connection: Provides reliable sealing for leak preventionHUHAXIXI Tube Compression Union Fitting 1/8 3/8 1/2inch BSPP, Male Female 4-16mm Brass Pipe Fitting Elbow 1 piece(PC,4mm,3/8inch) Secure Connection: Provides reliable sealing for leak preventionHUHAXIXI Tube Compression Union Fitting 1/8 3/8 1/2inch BSPP, Male Female 4-16mm Brass Pipe Fitting Elbow 1 piece(PCF,8mm,1/4inch Secure Connection: Provides reliable sealing for leak preventionHUHAXIXI Tube Compression Union Fitting 1/8 3/8 1/2inch BSPP, Male Female 4-16mm Brass Pipe Fitting Elbow 1 piece(PC,6mm,1/8inch) Secure Connection: Provides reliable sealing for leak preventionHUHAXIXI Tube Compression Union Fitting 1/8 3/8 1/2inch BSPP, Male Female 4-16mm Brass Pipe Fitting Elbow 1 piece(PC,12mm,1/8inch Secure Connection: Provides reliable sealing for leak preventionHUHAXIXI Tube Compression Union Fitting 1/8 3/8 1/2inch BSPP, Male Female 4-16mm Brass Pipe Fitting Elbow 1 piece(PC,8mm,1/8inch) Secure Connection: Provides reliable sealing for leak preventionHUHAXIXI Tube Compression Union Fitting 1/8 3/8 1/2inch BSPP, Male Female 4-16mm Brass Pipe Fitting Elbow 1 piece(PCF,10mm,1/4inc Secure Connection: Provides reliable sealing for leak preventionHUHAXIXI Tube Compression Union Fitting 1/8 3/8 1/2inch BSPP, Male Female 4-16mm Brass Pipe Fitting Elbow 1 piece(PC,12mm,3/8inch Secure Connection: Provides reliable sealing for leak preventionHUHAXIXI Tube Compression Union Fitting 1/8 3/8 1/2inch BSPP, Male Female 4-16mm Brass Pipe Fitting Elbow 1 piece(PC,10mm,1/8inch Secure Connection: Provides reliable sealing for leak preventionHUHAXIXI Tube Compression Union Fitting 1/8 3/8 1/2inch BSPP, Male Female 4-16mm Brass Pipe Fitting Elbow 1 piece(PC,10mm,1/8inch Secure Connection: Provides reliable sealing for leak preventionHUHAXIXI Tube Compression Union Fitting 1/8 3/8 1/2inch BSPP, Male Female 4-16mm Brass Pipe Fitting Elbow 1 piece(PC,14mm,3/8inch Secure Connection: Provides reliable sealing for leak preventionHUHAXIXI Tube Compression Union Fitting 1/8 3/8 1/2inch BSPP, Male Female 4-16mm Brass Pipe Fitting Elbow 1 piece(PCF,12mm,1/4inc Secure Connection: Provides reliable sealing for leak preventionHUHAXIXI Tube Compression Union Fitting 1/8 3/8 1/2inch BSPP, Male Female 4-16mm Brass Pipe Fitting Elbow 1 piece(PCF,6mm,1/2inch Secure Connection: Provides reliable sealing for leak preventionHUHAXIXI Tube Compression Union Fitting 1/8 3/8 1/2inch BSPP, Male Female 4-16mm Brass Pipe Fitting Elbow 1 piece(PC,8mm,3/8inch) Secure Connection: Provides reliable sealing for leak preventionHUHAXIXI Tube Compression Union Fitting 1/8 3/8 1/2inch BSPP, Male Female 4-16mm Brass Pipe Fitting Elbow 1 piece(PCF,4mm,1/4inch Secure Connection: Provides reliable sealing for leak preventionHUHAXIXI Tube Compression Union Fitting 1/8 3/8 1/2inch BSPP, Male Female 4-16mm Brass Pipe Fitting Elbow 1 piece(PCF,8mm,1/2inch Secure Connection: Provides reliable sealing for leak preventionHUHAXIXI Tube Compression Union Fitting 1/8 3/8 1/2inch BSPP, Male Female 4-16mm Brass Pipe Fitting Elbow 1 piece(PCF,6mm,1/4inch Secure Connection: Provides reliable sealing for leak preventionHUHAXIXI Tube Compression Union Fitting 1/8 3/8 1/2inch BSPP, Male Female 4-16mm Brass Pipe Fitting Elbow 1 piece(PCF,10mm,1/2inc Secure Connection: Provides reliable sealing for leak preventionNative Union Native Union Ultralight Sleeve – Durable, Lightweight, Sustainable – Made of 100% Recycled Ripstop Fabric – Compatible w COMPATIBILITY: Designed for MacBook Pro 14" (2021 & later) and most 14-inch laptop (≤ L33.6cm x W24.4cm)HUHAXIXI Tube Compression Union Fitting 1/8 3/8 1/2inch BSPP, Male Female 4-16mm Brass Pipe Fitting Elbow 1 piece(PCF,12mm,1/2inc Secure Connection: Provides reliable sealing for leak preventionHUHAXIXI Tube Compression Union Fitting 1/8 3/8 1/2inch BSPP, Male Female 4-16mm Brass Pipe Fitting Elbow 1 piece(PC,16mm,1/2inch Secure Connection: Provides reliable sealing for leak preventionHUHAXIXI Tube Compression Union Fitting 1/8 3/8 1/2inch BSPP, Male Female 4-16mm Brass Pipe Fitting Elbow 1 piece(PC,16mm,3/8inch Secure Connection: Provides reliable sealing for leak preventionNative Union Native Union Ultralight Sleeve – Durable, Lightweight, Sustainable – Made of 100% Recycled Ripstop Fabric – Compatible w COMPATIBILITY: Designed for MacBook Pro 13” (2016 & later), MacBook Air 13” (2018 - 2020), MacBook Air (M3, 2024), and mNative Union Native Union Ultralight Sleeve – Durable, Lightweight, Sustainable – Made of 100% Recycled Ripstop Fabric – Compatible w COMPATIBILITY: Designed for MacBook Pro 13” (2016 & later), MacBook Air 13” (2018 - 2020), MacBook Air (M3, 2024), and mPentair Union, Threaded Half, Pent CNCRP/PosiClear RP/Sep Tank HUHAXIXI 1pc Sturdy PTFE Compression Union Fitting, Reducer Plumbing Coupler Connection Leak-Resistance(1/16 inch*1/8 inch) Lightweight: Reduces overall system weight without compromising strengthHUHAXIXI 1pc Sturdy PTFE Compression Union Fitting, Reducer Plumbing Coupler Connection Leak-Resistance(1/8 inch*1/4 inch) Lightweight: Reduces overall system weight without compromising strengthHUHAXIXI 1pc Sturdy PTFE Compression Union Fitting, Reducer Plumbing Coupler Connection Leak-Resistance(4MM*6MM) Lightweight: Reduces overall system weight without compromising strengthHUHAXIXI 1pc Sturdy PTFE Compression Union Fitting, Reducer Plumbing Coupler Connection Leak-Resistance(2mm*4mm) Lightweight: Reduces overall system weight without compromising strength