Log In | Checkout | 94 item(s)

3 x 2nd stage C10 carbon block filter (replace every 6-12 months)
1 x .AR104H High Efficiency Membrane Aquarium Reef Aeroponics RO DI
1 x 1.SED2005, 1st stage sediment filter 20" inch for RD322 RO260
1 x KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
4 x Optional 5th or 6th Stage upgrade inline DI filter(color change)
1 x Optional 566 Filter Housing Wrench Case Opener KoolerMax System
7 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
2 x 1st stage SF05 sediment filter (replace every 6-12 months)
1 x 741-38, Diverter Valve for RO DI Water Systems
2 x 709C, Disc Shape Auto Shut Off Valve 4-way Four Way Valve
1 x 6th Stage pn215 Refillable inline DI filter (color change)
1 x MK300, Maintenance kit for RO535, RO435, RO545, AR104H
2 x 701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
1 x MK225, Maintenance kit for Honeywell RO9100 Filtercold RO5 AV180
1 x .AR122 KoolerMax 6STAGE Aquarium Reef REVERSE OSMOSIS RODI WATER
2 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x 718xl, Tubing 100 feet 1/4" white tube LLDPE PE for drinking wat
1 x PSW-360 Aquatec Pressure Switch 60 psi shut off 3/8" tubing TSO
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle AR122
1 x .RD322 Aquarium 260-300 GPD REVERSE OSMOSIS RO+DI WATER SYSTEM
1 x CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
1 x BBK10, Replacement Filter Big Blue Whole House WH-1134
1 x PSW-3100 Aquatec Pressure Switch 100 psi shut off 3/8 tubing TSO
1 x 673, Replacement UV Lamp Light for 602 (6 Watts)
1 x KF355, Antique Brushed Brass / Iron Finish Drinking Water Faucet
3 x 201, 1st stage sediment filter (replace every 6-12 months)
1 x SV-24AC-38, KSD Solenoid Valve ESO 3/8" brass, 24V AC
2 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x 205, 3rd stage solid carbon block filter (replace every 12month)
1 x 532bpg, PAE RO water pressure tank blue bladder gauge valve 4G
1 x BUNDLE PACK ANNUAL FILTER KIT FK3 WaterGeneral 102 150 (3 ITEMS)
1 x MK8002, Maintenance kit for double membrane system RD322 RO260
1 x SET8855 Aquatec 5853 Booster Pump Assembly for Aeroponics System
4 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x DB40, DI Resin Refill Bag for DI210, RD322
3 x 701C, FHC1014 Filter Housing Chamber Casing Clear Color 1/4 FPT
1 x 752, DC Booster Pump w/ Transformer
1 x 709, Automatic Shut Off Valve 4-way Four Way Valve
1 x RF62, Replacement filter for CT-6000, UC7000, SW-1, and SW-1C
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle AR150P
2 x CPR-150G, Pressure Regulator with Pressure Gauge (0-125 psi)
2 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x UC SHELL, Honeywell UC7000 Empty System Only No Filter
1 x FRQ550, Flow Restrictor 500 to 600ML / min
1 x FPK, 6 pcs Fitting Pack Union Connector 1/2 x 3/8 inch
1 x NM-5104, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
1 x 350UP, Upgrade Kit TFC50 gal/day (includes US membrane filter)
1 x 4th stage TFC150 US membrane filter (every 2-3 yrs)M150 P/N3150
2 x Optional: 564 Membrane Filter Housing Wrench Opener
2 x 721, Self-Piercing Valve, Feed Water Adapter for Copper Pipe
1 x 531, PAE RO Storage Pressure Osmosis Water Tank Container 3G
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RO585
1 x 5th or 6th Stage IC21 inline carbon filter (every 6 to 12 mons)
1 x Optional 225UP 5th stage Inline Alkaline upgrade(includes media)
1 x Parts, Ro Water System Installation Parts Bag 1/4"
1 x MK550, Maintenance kit for RO585, RD102, RD106, RO6, K5, K6
1 x Special, Single Stage Housing Bracket Shell Connection Kit
1 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x O-RING RINGS FOR WH20 WHOLE HOUSE SYSTEM HOUSING BIG BLUE 20"
1 x FM40, STEEL BRACKET DOUBLE HOUSING 10" STANDARD
1 x CKV0402, Blue color Elbow Check Valve Elbow Type
1 x Annual Filter Kit Koolermax Series KPAK-4 Sediment Carbon Block
1 x 205, 3rd stage solid carbon block filter (replace every 12 month
1 x 723, Feed Water Adapter with Ball Valve
1 x HK120-P-TK for USA 110V / 60Hz
1 x bulk205, Carbon Block Filter
1 x FPK, High Quality Fitting and Connector 3/8" (Value-Pack)
View Cart $3,716.89

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94 item(s)

3 x	2nd stage C10 carbon block filter (replace every 6-12 months)
1 x	.AR104H High Efficiency Membrane Aquarium Reef Aeroponics RO DI
1 x	1.SED2005, 1st stage sediment filter 20" inch for RD322 RO260
1 x	KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
4 x	Optional 5th or 6th Stage upgrade inline DI filter(color change)
1 x	Optional 566 Filter Housing Wrench Case Opener KoolerMax System
7 x	Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
2 x	1st stage SF05 sediment filter (replace every 6-12 months)
1 x	741-38, Diverter Valve for RO DI Water Systems
2 x	709C, Disc Shape Auto Shut Off Valve 4-way Four Way Valve
1 x	6th Stage pn215 Refillable inline DI filter (color change)
1 x	MK300, Maintenance kit for RO535, RO435, RO545, AR104H
2 x	701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
1 x	MK225, Maintenance kit for Honeywell RO9100 Filtercold RO5 AV180
1 x	.AR122 KoolerMax 6STAGE Aquarium Reef REVERSE OSMOSIS RODI WATER
2 x	Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x	718xl, Tubing 100 feet 1/4" white tube LLDPE PE for drinking wat
1 x	PSW-360 Aquatec Pressure Switch 60 psi shut off 3/8" tubing TSO
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle AR122
1 x	.RD322 Aquarium 260-300 GPD REVERSE OSMOSIS RO+DI WATER SYSTEM
1 x	CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
1 x	BBK10, Replacement Filter Big Blue Whole House WH-1134
1 x	PSW-3100 Aquatec Pressure Switch 100 psi shut off 3/8 tubing TSO
1 x	673, Replacement UV Lamp Light for 602 (6 Watts)
1 x	KF355, Antique Brushed Brass / Iron Finish Drinking Water Faucet
3 x	201, 1st stage sediment filter (replace every 6-12 months)
1 x	SV-24AC-38, KSD Solenoid Valve ESO 3/8" brass, 24V AC
2 x	532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x	205, 3rd stage solid carbon block filter (replace every 12month)
1 x	532bpg, PAE RO water pressure tank blue bladder gauge valve 4G
1 x	BUNDLE PACK ANNUAL FILTER KIT FK3 WaterGeneral 102 150 (3 ITEMS)
1 x	MK8002, Maintenance kit for double membrane system RD322 RO260
1 x	SET8855 Aquatec 5853 Booster Pump Assembly for Aeroponics System
4 x	KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x	DB40, DI Resin Refill Bag for DI210, RD322
3 x	701C, FHC1014 Filter Housing Chamber Casing Clear Color 1/4 FPT
1 x	752, DC Booster Pump w/ Transformer
1 x	709, Automatic Shut Off Valve 4-way Four Way Valve
1 x	RF62, Replacement filter for CT-6000, UC7000, SW-1, and SW-1C
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle AR150P
2 x	CPR-150G, Pressure Regulator with Pressure Gauge (0-125 psi)
2 x	532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x	UC SHELL, Honeywell UC7000 Empty System Only No Filter
1 x	FRQ550, Flow Restrictor 500 to 600ML / min
1 x	FPK, 6 pcs Fitting Pack Union Connector 1/2 x 3/8 inch
1 x	NM-5104, HONEYWELL COUNTERTOP WATER FILTER DISCONTINUED SW1
1 x	350UP, Upgrade Kit TFC50 gal/day (includes US membrane filter)
1 x	4th stage TFC150 US membrane filter (every 2-3 yrs)M150 P/N3150
2 x	Optional: 564 Membrane Filter Housing Wrench Opener
2 x	721, Self-Piercing Valve, Feed Water Adapter for Copper Pipe
1 x	531, PAE RO Storage Pressure Osmosis Water Tank Container 3G
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle RO585
1 x	5th or 6th Stage IC21 inline carbon filter (every 6 to 12 mons)
1 x	Optional 225UP 5th stage Inline Alkaline upgrade(includes media)
1 x	Parts, Ro Water System Installation Parts Bag 1/4"
1 x	MK550, Maintenance kit for RO585, RD102, RD106, RO6, K5, K6
1 x	Special, Single Stage Housing Bracket Shell Connection Kit
1 x	733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x	O-RING RINGS FOR WH20 WHOLE HOUSE SYSTEM HOUSING BIG BLUE 20"
1 x	FM40, STEEL BRACKET DOUBLE HOUSING 10" STANDARD
1 x	CKV0402, Blue color Elbow Check Valve Elbow Type
1 x	Annual Filter Kit Koolermax Series KPAK-4 Sediment Carbon Block
1 x	205, 3rd stage solid carbon block filter (replace every 12 month
1 x	723, Feed Water Adapter with Ball Valve
1 x	HK120-P-TK for USA 110V / 60Hz
1 x	bulk205, Carbon Block Filter
1 x	FPK, High Quality Fitting and Connector 3/8" (Value-Pack)

View Cart	$3,716.89

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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