Log In | Checkout | 37 item(s)

1 x .AR122 KoolerMax 6STAGE Aquarium Reef REVERSE OSMOSIS RODI WATER
1 x FPK, 6 pcs Fitting Pack Union Connector 3/8 x 1/4 inch
1 x PSW-260 Aquatec Pressure Switch 60 psi shut off 1/4" tubing TSO
1 x SV-24DC-14, Solenoid Valve ESO 1/4" plastic, 24V DC
1 x *Discontinued* RO585NTF
2 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x Parts, Ro Water System Installation Parts Bag 1/4"
1 x CBV-38, Tank Ball Valve to 3/8 tubing
1 x .AR150PNTF, KoolerMax AR150P RO System Shell without tank faucet
1 x B2010, 20" Big Blue Filter Housing Cartridge WH20 WH25 WH250
1 x SV-24DC-38-Brass KSD Solenoid Valve 3/8" brass 24V DC ESO
1 x FPK11, High Quality Fitting and Connector 1/4" (Value-Pack)
1 x Y3414CH, Garden Hose Y Adapter Shut-Off Valve Metal Construction
1 x 4th stage TFC150 US membrane filter (every 2-3 yrs)M150 P/N3150
1 x .AR125NTF KoolerMax AR125 RO System Shell without tank & faucet
2 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x PSW-2100 Aquatec Pressure Switch 100 psi shut off 1/4 tubing TSO
1 x BBK10, Replacement Filter Big Blue Whole House WH-1134
1 x Optional 566 Filter Housing Wrench Case Opener KoolerMax System
1 x 532wpg, PAE RO water pressure white tank bladder gauge valve 4G
1 x CKV0402, Blue color Elbow Check Valve Elbow Type
1 x PSW-380 Aquatec Pressure Switch 80 psi shut off 3/8" tubing TSO
1 x 4044-K Male Elbow Fitting Compression type 1/4" OD 1/4" NPT
1 x 204, 2nd stage GAC filter (replace every 6-12 months)
1 x .K6A KoolerMax 75GPD 6STAGE Alkaline pH REVERSE OSMOSIS RO FILTE
1 x KT-103, Optional Manual Membrane Flush Valve
1 x KF511UP SUBSTITUTE/Upgrade Faucet CHROME GOLD TRIM CROSS HANDLE
1 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x SVkit, Pump Shutoff Switch Kit for Aquatec Booster Pumps ESO TSO
1 x .RD322 Aquarium 260-300 GPD REVERSE OSMOSIS RO+DI WATER SYSTEM
1 x .K5150P, KoolerMax 150GPD 5 Stage RO System w/Booster Pump
1 x 324, 4th stage TFC-24 US membrane filter (replace every 2-3 yrs)
1 x 531, PAE RO Storage Pressure Osmosis Water Tank Container 3G
1 x PSW-3100 Aquatec Pressure Switch 100 psi shut off 3/8 tubing TSO
1 x *Discontinued* RO6ALK
View Cart $2,481.95

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37 item(s)

1 x	.AR122 KoolerMax 6STAGE Aquarium Reef REVERSE OSMOSIS RODI WATER
1 x	FPK, 6 pcs Fitting Pack Union Connector 3/8 x 1/4 inch
1 x	PSW-260 Aquatec Pressure Switch 60 psi shut off 1/4" tubing TSO
1 x	SV-24DC-14, Solenoid Valve ESO 1/4" plastic, 24V DC
1 x	Discontinued RO585NTF
2 x	Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x	Parts, Ro Water System Installation Parts Bag 1/4"
1 x	CBV-38, Tank Ball Valve to 3/8 tubing
1 x	.AR150PNTF, KoolerMax AR150P RO System Shell without tank faucet
1 x	B2010, 20" Big Blue Filter Housing Cartridge WH20 WH25 WH250
1 x	SV-24DC-38-Brass KSD Solenoid Valve 3/8" brass 24V DC ESO
1 x	FPK11, High Quality Fitting and Connector 1/4" (Value-Pack)
1 x	Y3414CH, Garden Hose Y Adapter Shut-Off Valve Metal Construction
1 x	4th stage TFC150 US membrane filter (every 2-3 yrs)M150 P/N3150
1 x	.AR125NTF KoolerMax AR125 RO System Shell without tank & faucet
2 x	532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x	PSW-2100 Aquatec Pressure Switch 100 psi shut off 1/4 tubing TSO
1 x	BBK10, Replacement Filter Big Blue Whole House WH-1134
1 x	Optional 566 Filter Housing Wrench Case Opener KoolerMax System
1 x	532wpg, PAE RO water pressure white tank bladder gauge valve 4G
1 x	CKV0402, Blue color Elbow Check Valve Elbow Type
1 x	PSW-380 Aquatec Pressure Switch 80 psi shut off 3/8" tubing TSO
1 x	4044-K Male Elbow Fitting Compression type 1/4" OD 1/4" NPT
1 x	204, 2nd stage GAC filter (replace every 6-12 months)
1 x	.K6A KoolerMax 75GPD 6STAGE Alkaline pH REVERSE OSMOSIS RO FILTE
1 x	KT-103, Optional Manual Membrane Flush Valve
1 x	KF511UP SUBSTITUTE/Upgrade Faucet CHROME GOLD TRIM CROSS HANDLE
1 x	KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x	SVkit, Pump Shutoff Switch Kit for Aquatec Booster Pumps ESO TSO
1 x	.RD322 Aquarium 260-300 GPD REVERSE OSMOSIS RO+DI WATER SYSTEM
1 x	.K5150P, KoolerMax 150GPD 5 Stage RO System w/Booster Pump
1 x	324, 4th stage TFC-24 US membrane filter (replace every 2-3 yrs)
1 x	531, PAE RO Storage Pressure Osmosis Water Tank Container 3G
1 x	PSW-3100 Aquatec Pressure Switch 100 psi shut off 3/8 tubing TSO
1 x	Discontinued RO6ALK

View Cart	$2,481.95

FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch [FPK-AUC0404]

$14.95

$FPK, 6 pcs Fitting Pack Union Connector 1/4\" quarter inch$

Quantity

Description

Union Connector, 1/4" to 1/4"

part# AUC 0404

* We carry different fittings in variation of sizes: 1/4", 3/8", or 1/2" adapters, connectors, fittings, or valves. Most are not listed online, to avoid confusion to majority of RO system customers.

* Send us a message with specification, intended application, and image of your setup or old fitting to check if we have what you need.

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