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1 x 709, Automatic Shut Off Valve 4-way Four Way Valve
2 x 701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
1 x PSW-350, Pressure Switch for RO Booster Pump 1/4" TSO
1 x 277, SED1005BB Big Blue 5 micron sediment filter 10"
1 x PSW-360 Aquatec Pressure Switch 60 psi shut off 3/8" tubing TSO
1 x Optional: 564 Membrane Filter Housing Wrench Opener
1 x 4th stage TFC150 US membrane filter (every 2-3 yrs)M150 P/N3150
1 x 752set, DC Booster Pump Transformer Solenoid Pressure Switch All
1 x 4th stage TFC 75/85 US membrane filter (every 2-3 yrs) M75
2 x Optional 566 Filter Housing Wrench Case Opener KoolerMax System
1 x KT-103, Optional Manual Membrane Flush Valve
1 x CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RO585
1 x 532bpg, PAE RO water pressure tank blue bladder gauge valve 4G
1 x UU Clips Pair from Bracket to Membrane Filter
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle AR125
1 x FV-14, Bobby Float Valve Side Mount RM292-12-N NSF USA
1 x bulk213, Inline Carbon Filter
1 x BBK10, Replacement Filter Big Blue Whole House WH-1134
1 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
2 x Parts, Ro Water System Installation Parts Bag 1/4"
1 x Conversion Kit, Convert Aquarium to Drinking RO Water System
1 x Y3414CH, Garden Hose Y Adapter Shut-Off Valve Metal Construction
2 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x PSW-240 Aquatec Pressure Switch 40 psi shut off 1/4" tubing TSO
1 x 335, 4th stage TFC 35/45 US membrane filter (every 2-3 years)
1 x FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch
1 x PSW-380 Aquatec Pressure Switch 80 psi shut off 3/8" tubing TSO
1 x .SW-1C COUNTERTOP WATER FILTER SYSTEM (CLEAR HOUSING)
2 x Value Pack- Entire 3 Years of Replacement Filters Bundle HK120
1 x 752, DC Booster Pump w/ Transformer
1 x PSW-340 Aquatec Pressure Switch 40 psi shut off 3/8" tubing TSO
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle K5
1 x bulkic21, Koolermax Inline Carbon Filter
1 x 741-38, Diverter Valve for RO DI Water Systems
1 x 213, 5th or 6th stage inline carbon filter (replace in 12 mons)
1 x 225UP, 5th stage Inline Alkaline upgrade (includes media)
1 x 2nd stage C10 carbon block filter (replace every 6-12 months)
2 x 745, AFAN0409 Female Garden Hose / Laundry Hose Adapter
1 x SV-24DC-14, Solenoid Valve ESO 1/4" plastic, 24V DC
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RD322
1 x BUNDLE PACK ANNUAL FILTER KIT FK3 WaterGeneral 102 150 (3 ITEMS)
1 x MKP, Maintenance kit for K5150P K6150P AR150P
1 x FPK11, High Quality Fitting and Connector 1/4" (Value-Pack)
1 x 201, 1st stage sediment filter (replace every 6-12 months)
1 x KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x B2012, 20" Long Slim Filter Cartridge Housing RO260 RD322
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RD102
2 x Value Pack- Entire 3 Years of Replacement Filters Bundle K5150P
1 x 1st stage SF05 sediment filter (replace every 6-12 months)
1 x MK300, Maintenance kit for RO535, RO435, RO545, AR104H
1 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x 6044-K Tee Fitting Compression Type 1/4"OD 1/4" NPT
View Cart $3,290.64

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60 item(s)

1 x	709, Automatic Shut Off Valve 4-way Four Way Valve
2 x	701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
1 x	PSW-350, Pressure Switch for RO Booster Pump 1/4" TSO
1 x	277, SED1005BB Big Blue 5 micron sediment filter 10"
1 x	PSW-360 Aquatec Pressure Switch 60 psi shut off 3/8" tubing TSO
1 x	Optional: 564 Membrane Filter Housing Wrench Opener
1 x	4th stage TFC150 US membrane filter (every 2-3 yrs)M150 P/N3150
1 x	752set, DC Booster Pump Transformer Solenoid Pressure Switch All
1 x	4th stage TFC 75/85 US membrane filter (every 2-3 yrs) M75
2 x	Optional 566 Filter Housing Wrench Case Opener KoolerMax System
1 x	KT-103, Optional Manual Membrane Flush Valve
1 x	CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle RO585
1 x	532bpg, PAE RO water pressure tank blue bladder gauge valve 4G
1 x	UU Clips Pair from Bracket to Membrane Filter
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle AR125
1 x	FV-14, Bobby Float Valve Side Mount RM292-12-N NSF USA
1 x	bulk213, Inline Carbon Filter
1 x	BBK10, Replacement Filter Big Blue Whole House WH-1134
1 x	Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
2 x	Parts, Ro Water System Installation Parts Bag 1/4"
1 x	Conversion Kit, Convert Aquarium to Drinking RO Water System
1 x	Y3414CH, Garden Hose Y Adapter Shut-Off Valve Metal Construction
2 x	KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x	PSW-240 Aquatec Pressure Switch 40 psi shut off 1/4" tubing TSO
1 x	335, 4th stage TFC 35/45 US membrane filter (every 2-3 years)
1 x	FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch
1 x	PSW-380 Aquatec Pressure Switch 80 psi shut off 3/8" tubing TSO
1 x	.SW-1C COUNTERTOP WATER FILTER SYSTEM (CLEAR HOUSING)
2 x	Value Pack- Entire 3 Years of Replacement Filters Bundle HK120
1 x	752, DC Booster Pump w/ Transformer
1 x	PSW-340 Aquatec Pressure Switch 40 psi shut off 3/8" tubing TSO
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle K5
1 x	bulkic21, Koolermax Inline Carbon Filter
1 x	741-38, Diverter Valve for RO DI Water Systems
1 x	213, 5th or 6th stage inline carbon filter (replace in 12 mons)
1 x	225UP, 5th stage Inline Alkaline upgrade (includes media)
1 x	2nd stage C10 carbon block filter (replace every 6-12 months)
2 x	745, AFAN0409 Female Garden Hose / Laundry Hose Adapter
1 x	SV-24DC-14, Solenoid Valve ESO 1/4" plastic, 24V DC
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle RD322
1 x	BUNDLE PACK ANNUAL FILTER KIT FK3 WaterGeneral 102 150 (3 ITEMS)
1 x	MKP, Maintenance kit for K5150P K6150P AR150P
1 x	FPK11, High Quality Fitting and Connector 1/4" (Value-Pack)
1 x	201, 1st stage sediment filter (replace every 6-12 months)
1 x	KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x	B2012, 20" Long Slim Filter Cartridge Housing RO260 RD322
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle RD102
2 x	Value Pack- Entire 3 Years of Replacement Filters Bundle K5150P
1 x	1st stage SF05 sediment filter (replace every 6-12 months)
1 x	MK300, Maintenance kit for RO535, RO435, RO545, AR104H
1 x	532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x	6044-K Tee Fitting Compression Type 1/4"OD 1/4" NPT

View Cart	$3,290.64

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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