Log In | Checkout | 70 item(s)

2 x 2nd stage C10 carbon block filter (replace every 6-12 months)
3 x MK300, Maintenance kit for RO535, RO435, RO545, AR104H
1 x SET68, AQUATEC 6840 AC Pump Set Solenoid ESO Pressure Switch SET
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RO260
1 x TMR-220V-2A Aquatec TACS234-48 Transformer Power Supply EuroPlug
3 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
2 x Optional 5th or 6th Stage upgrade inline DI filter(color change)
3 x 1st stage SF05 sediment filter (replace every 6-12 months)
1 x CPR-150G, Pressure Regulator with Pressure Gauge (0-125 psi)
1 x AQUATEC 8852-2J03-B424 High Flow Booster Pump 110V Transformer
2 x Annual Filter Kit Koolermax Series KPAK-4 Sediment Carbon Block
2 x Optional: 564 Membrane Filter Housing Wrench Opener
1 x N-14-1M, Nipple Fitting connector between standard RO housing
1 x B2010, 20" Big Blue Filter Housing Cartridge WH20 WH25 WH250
1 x PSW-380 Aquatec Pressure Switch 80 psi shut off 3/8" tubing TSO
1 x FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch
1 x CBV-38, Tank Ball Valve to 3/8 tubing
1 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x 1044-K Male Connector 1/4 OD x 1/4 NPT Compression Fitting
1 x SET8855-300 Aquatec 5853 Booster Pump Assembly for 300GPD RO Sys
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle AR125
1 x DI210, Heavy-duty DI system for Aquarium and Reef
1 x 4th stage TFC 75/85 US membrane filter (every 2-3 yrs) M75
1 x RF62, Replacement filter for CT-6000, UC7000, SW-1, and SW-1C
1 x Conversion Kit, Convert Aquarium to Drinking RO Water System
1 x CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
2 x OPTIONAL: 567 Filter Housing Wrench Case Opener WHOLE HOUSE WH
1 x 2.CB2010, 2nd stage carbon block filter 20" inch for RD322 RO260
1 x .AR125NTF KoolerMax AR125 RO System Shell without tank & faucet
1 x BUNDLE PACK ANNUAL FILTER KIT FK3 WaterGeneral 102 150 (3 ITEMS)
1 x 5th or 6th Stage IC21 inline carbon filter (every 6 to 12 mons)
1 x 3150, 4th stage TFC-150 US membrane filter (every 2-3 yrs)
2 x Optional 566 Filter Housing Wrench Case Opener KoolerMax System
1 x 3rd stage Special High Efficiency Membrane Filter HTFC-150
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle K6ALK
1 x KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x Bundle Filter Annual set KPAK-104b Sediment Carbon Resin Refill
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle K5
1 x 4044-K Male Elbow Fitting Compression type 1/4" OD 1/4" NPT
1 x bulkic21, Koolermax Inline Carbon Filter
1 x Optional 225UP 5th stage Inline Alkaline upgrade(includes media)
1 x Parts, Ro Water System Installation Parts Bag 1/4"
1 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x TMR-DC-1212, Transformer Power Supply for Delivery Demand Pump
1 x 213, 5th or 6th stage inline carbon filter (replace in 12 mons)
1 x 5th stage 225 Inline Alkaline filter with clear housing (annual)
1 x FKD-66, Replacement Filter Pack SED2005 CB2010 DB40 for RD322
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle AR104H
1 x FPK11, High Quality Fitting and Connector 1/4" (Value-Pack)
1 x 205, 3rd stage solid carbon block filter (replace every 12month)
1 x 213, 4th stage inline carbon filter (replace every 12 months)
1 x 1.SED2005, 1st stage sediment filter 20" inch for RD322 RO260
1 x 752, DC Booster Pump w/ Transformer
1 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x 6044-K Tee Fitting Compression Type 1/4"OD 1/4" NPT
1 x 4th Stage Color Changing DI Filter SC207 for AR-104H
1 x FPK, 6 pcs Fitting Pack Union Connector 3/8 x 1/4 inch
1 x 756SET, Aquatec Permeate Pump Reverse Osmosis System ERP1000
View Cart $3,222.14

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70 item(s)

2 x	2nd stage C10 carbon block filter (replace every 6-12 months)
3 x	MK300, Maintenance kit for RO535, RO435, RO545, AR104H
1 x	SET68, AQUATEC 6840 AC Pump Set Solenoid ESO Pressure Switch SET
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle RO260
1 x	TMR-220V-2A Aquatec TACS234-48 Transformer Power Supply EuroPlug
3 x	Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
2 x	Optional 5th or 6th Stage upgrade inline DI filter(color change)
3 x	1st stage SF05 sediment filter (replace every 6-12 months)
1 x	CPR-150G, Pressure Regulator with Pressure Gauge (0-125 psi)
1 x	AQUATEC 8852-2J03-B424 High Flow Booster Pump 110V Transformer
2 x	Annual Filter Kit Koolermax Series KPAK-4 Sediment Carbon Block
2 x	Optional: 564 Membrane Filter Housing Wrench Opener
1 x	N-14-1M, Nipple Fitting connector between standard RO housing
1 x	B2010, 20" Big Blue Filter Housing Cartridge WH20 WH25 WH250
1 x	PSW-380 Aquatec Pressure Switch 80 psi shut off 3/8" tubing TSO
1 x	FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch
1 x	CBV-38, Tank Ball Valve to 3/8 tubing
1 x	532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x	1044-K Male Connector 1/4 OD x 1/4 NPT Compression Fitting
1 x	SET8855-300 Aquatec 5853 Booster Pump Assembly for 300GPD RO Sys
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle AR125
1 x	DI210, Heavy-duty DI system for Aquarium and Reef
1 x	4th stage TFC 75/85 US membrane filter (every 2-3 yrs) M75
1 x	RF62, Replacement filter for CT-6000, UC7000, SW-1, and SW-1C
1 x	Conversion Kit, Convert Aquarium to Drinking RO Water System
1 x	CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
2 x	OPTIONAL: 567 Filter Housing Wrench Case Opener WHOLE HOUSE WH
1 x	2.CB2010, 2nd stage carbon block filter 20" inch for RD322 RO260
1 x	.AR125NTF KoolerMax AR125 RO System Shell without tank & faucet
1 x	BUNDLE PACK ANNUAL FILTER KIT FK3 WaterGeneral 102 150 (3 ITEMS)
1 x	5th or 6th Stage IC21 inline carbon filter (every 6 to 12 mons)
1 x	3150, 4th stage TFC-150 US membrane filter (every 2-3 yrs)
2 x	Optional 566 Filter Housing Wrench Case Opener KoolerMax System
1 x	3rd stage Special High Efficiency Membrane Filter HTFC-150
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle K6ALK
1 x	KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x	Bundle Filter Annual set KPAK-104b Sediment Carbon Resin Refill
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle K5
1 x	4044-K Male Elbow Fitting Compression type 1/4" OD 1/4" NPT
1 x	bulkic21, Koolermax Inline Carbon Filter
1 x	Optional 225UP 5th stage Inline Alkaline upgrade(includes media)
1 x	Parts, Ro Water System Installation Parts Bag 1/4"
1 x	733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x	TMR-DC-1212, Transformer Power Supply for Delivery Demand Pump
1 x	213, 5th or 6th stage inline carbon filter (replace in 12 mons)
1 x	5th stage 225 Inline Alkaline filter with clear housing (annual)
1 x	FKD-66, Replacement Filter Pack SED2005 CB2010 DB40 for RD322
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle AR104H
1 x	FPK11, High Quality Fitting and Connector 1/4" (Value-Pack)
1 x	205, 3rd stage solid carbon block filter (replace every 12month)
1 x	213, 4th stage inline carbon filter (replace every 12 months)
1 x	1.SED2005, 1st stage sediment filter 20" inch for RD322 RO260
1 x	752, DC Booster Pump w/ Transformer
1 x	KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x	6044-K Tee Fitting Compression Type 1/4"OD 1/4" NPT
1 x	4th Stage Color Changing DI Filter SC207 for AR-104H
1 x	FPK, 6 pcs Fitting Pack Union Connector 3/8 x 1/4 inch
1 x	756SET, Aquatec Permeate Pump Reverse Osmosis System ERP1000

View Cart	$3,222.14

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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