ABU, Bulkhead Union Connector [ABU]

$4.50

* ABU, Bulkhead Union Connector

* Please choose size from the selection box below. First number is tubing OD Outside Diameter and second number is NPT National Pipe Thread. (Pipe sizes can be confusing even for the experienced user. Pipe size is not the actual outside or inside diameter of the pipe but is the industry accepted designation. If you have any question please email us first.)
* 1/4" Tube OD x 1/4" NPTF Thread ABU0404
* 1/4" Tube OD x 3/8" NPTF Thread ABU0406
* 3/8" Tube OD x 1/4" NPTF Thread ABU0604
* 3/8" Tube OD x 3/8" NPTF Thread ABU0606
* 1/2" Tube OD x 1/2" NPTF Thread ABU0707

* Water & foods use: Products are manufactured from safe, non-toxic materials meeting the requirements of the US FDA, ERAS, ANSI/NSF-51,61, and SK Zert. Our products are widely used in water purification, food/beverage, and pneumatic systems.

* Function & Quality: Provides quick and convenient assembly-saving time & expense.

* Collet Design: Our unique oval collet design is superior and more practical, and is an improvement welcomed by our world wide customers in all industries.

* Additional Applications: Beyond water and food use, fittings can be used with air, gases, vacuum, & liquids. All connections can be assembled & disassembled repeatedly. A broad range of sizes covers a broad scope of applications.

* 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.

Available Options:

Size Combination:

Reviews

1 x	205, 3rd stage solid carbon block filter (replace every 12month)
3 x	201, 1st stage sediment filter (replace every 6-12 months)
1 x	SET88 Aquatec 8852 AC Booster pump Solenoid ESO Pressure Switch
1 x	709C, Disc Shape Auto Shut Off Valve 4-way Four Way Valve
1 x	CPR-150G, Pressure Regulator with Pressure Gauge (0-125 psi)
1 x	4044-K qty 2 Male Elbow Fitting Compression type 1/4"
2 x	Optional 225UP 5th stage Inline Alkaline upgrade(includes media)
1 x	O-RING FOR WH10 WHOLE HOUSE SYSTEM HOUSING BIG BLUE 10" CANISTER
2 x	701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
1 x	310, 2nd stage CTA 10 US Membrane filter
1 x	FRQ200, Flow Restrictor 200ML / min
1 x	4064K Male Connector Elbow 3/8 OD Compression Fitting 1/4 NPT
2 x	OPTIONAL: 567 Filter Housing Wrench Case Opener WHOLE HOUSE WH
2 x	733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
2 x	532bpg, PAE RO water pressure tank blue bladder gauge valve 4G
1 x	718xl, Tubing 100 feet 1/4" white tube LLDPE PE for drinking wat
1 x	SET8855 Aquatec 5853 Booster Pump Assembly for Aeroponics System
1 x	TMR-220V-2A Aquatec TACS234-48 Transformer Power Supply EuroPlug
2 x	4044-K Male Elbow Fitting Compression type 1/4" OD 1/4" NPT
2 x	BUNDLE PACK Annual Filter Kit FK4 WaterGeneral 585 106 (4 ITEMS)
3 x	532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x	PSW-240 Aquatec Pressure Switch 40 psi shut off 1/4" tubing TSO
1 x	818, DI Resin Refill Bag 16oz (good for up to three refills)
4 x	Optional: 564 Membrane Filter Housing Wrench Opener
1 x	581, Ice Maker Hookup Kit Connect RO water to Fridge Ice Maker
2 x	MK200, Maintenance kit for Rotek Systems RCT-103 and RTF-265
1 x	799, Siphon Pump Drinking Water Liquid Fluid Oil Manual Trasfer
1 x	Optional 5th or 6th Stage upgrade inline DI filter(color change)
2 x	6044-combo Compression Type Fitting Elbow and Tee fitting
1 x	CDP6800T110V, AQUATEC Booster Pump Transformer 6840-2J03-B224
1 x	PSW-360 Aquatec Pressure Switch 60 psi shut off 3/8" tubing TSO
1 x	FM60, STEEL BRACKET TRIPLE HOUSING 10" STANDARD FOR RO MOUNT
3 x	CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
2 x	Optional: 566 Filter Housing Wrench Opener WaterGeneral System
2 x	MK550, Maintenance kit for RO585, RD102, RD106, RO6, K5, K6
1 x	SV-24DC-14, Solenoid Valve ESO 1/4" plastic, 24V DC
1 x	SET8855-300 Aquatec 5853 Booster Pump Assembly for 300GPD RO Sys
1 x	HK120-P-220V KoolerMax Aeroponics Hydroponics RO + Booster Pump
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle RD106
5 x	Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x	FPK11, High Quality Fitting and Connector 1/4" (Value-Pack)
1 x	CP-OR55, O-RING FOR MEMBRANE FILTER HOUSING WaterGeneral Systems
1 x	759, Aquatec Demand Delivery Pump 5853-7E12-J524 Commercial 1.7G
1 x	365, 4th stage TFC 50/65 US membrane filter (replace 2-3 yrs)
1 x	SVkit, Pump Shutoff Switch Kit for Aquatec Booster Pumps ESO TSO
1 x	3rd stage C10 carbon block filter (replace every 6-12 months)
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle AR122
1 x	O-RING RINGS FOR WH20 WHOLE HOUSE SYSTEM HOUSING BIG BLUE 20"
1 x	4th stage TFC 75/85 US membrane filter (every 2-3 yrs) M75
2 x	752set, DC Booster Pump Transformer Solenoid Pressure Switch All
2 x	Parts, Ro Water System Installation Parts Bag 1/4"
2 x	214, Clear Inline Filter Cartridge Empty Case
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle K5
1 x	CDP8800, AQUATEC CDP8852-2J03-B424 Booster Pump Only Fitting
1 x	Optional 566 Filter Housing Wrench Case Opener KoolerMax System
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle K5150P
1 x	701C, FHC1014 Filter Housing Chamber Casing Clear Color 1/4 FPT
1 x	718TB38, Tubing, 20 feet 3/8" white LLDPE PE for drinking water
1 x	SV-24DC-38-Brass KSD Solenoid Valve 3/8" brass 24V DC ESO
1 x	B1034, 10" Big Blue Filter Housing Cartridge WH5 WH10 WH1134
1 x	709, Automatic Shut Off Valve 4-way Four Way Valve
1 x	FM90, STEEL BRACKET SINGLE HOUSING MOUNTING BIG BLUE WH SYSTEM
1 x	745, AFAN0409 Female Garden Hose / Laundry Hose Adapter
1 x	399, 4th stage TFC-100 US membrane filter (every 2-3 yrs)
1 x	385, 4th stage TFC 75/85 US membrane filter (every 2-3 yrs)
1 x	532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x	4042-K Male Elbow Fitting Compression type(membrane housing use)
1 x	EMT-10, Empty Filter Cartridge Casing Housing
1 x	SET68, AQUATEC 6840 AC Pump Set Solenoid ESO Pressure Switch SET
1 x	PSW-340 Aquatec Pressure Switch 40 psi shut off 3/8" tubing TSO
1 x	SV-24AC-14, Solenoid Valve ESO for Aquatec pump 1/4" wiring
1 x	HK120-P-TK-220V for EURO 220V / 50Hz
1 x	720, Feed Water Adapter with Needle Valve
1 x	706, Membrane Filter Casing Housing Assembly
1 x	TMR-220V-1A Aquatec TACS234-19 Transformer Power Supply EuroPlug
1 x	ACT-820-JG Aquatec Pulsation Dampener Accumulator Pressure Tank
1 x	SV-110AC-14, Solenoid Valve 1/4" plastic 110VAC ESO
3 x	KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x	Special, Single Stage Housing Bracket Shell Connection Kit
1 x	5th Stage pn215 Refillable inline DI filter (color change)
1 x	FPK, 6 pcs Fitting Pack Union Connector 3/8 x 1/4 inch
1 x	CP-KOR24, O-RING Oring FOR KOOLERMAX MEMBRANE FILTER HOUSING
1 x	CKV0402, Blue color Elbow Check Valve Elbow Type
1 x	.AR104H High Efficiency Membrane Aquarium Reef Aeroponics RO DI
2 x	KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x	277, SED1005BB Big Blue 5 micron sediment filter 10"
2 x	B2010, 20" Big Blue Filter Housing Cartridge WH20 WH25 WH250
2 x	205 2nd stage solid carbon block filter (replace every 12 month)
1 x	IM60, Ice Maker or RV Water Filter, Inline Typle
1 x	PSW-380 Aquatec Pressure Switch 80 psi shut off 3/8" tubing TSO
1 x	Special, Output Conversion Kit Convert from 1/4" to 3/8"
1 x	PSW-260 Aquatec Pressure Switch 60 psi shut off 1/4" tubing TSO
1 x	727, Feed Water Adapter 3/8" compression adapter 1/4" inline bal
1 x	1st stage SF05 sediment filter (replace every 6-12 months)
1 x	741-38, Diverter Valve for RO DI Water Systems
1 x	205, 3rd stage solid carbon block filter (replace every 12 month
1 x	215, 5th or 6th Stage Refillable inline DI filter (color change)
1 x	FRQ420, Flow Restrictor 420ML / min
1 x	FM40, STEEL BRACKET DOUBLE HOUSING 10" STANDARD
1 x	CBV-0404, Tank Ball Valve to 1/4 tubing standard RO tank size
1 x	FPK, 6 pcs Fitting Pack Union Connector 1/2 x 3/8 inch

View Cart	$4,782.81

1 x	205, 3rd stage solid carbon block filter (replace every 12month)
3 x	201, 1st stage sediment filter (replace every 6-12 months)
1 x	SET88 Aquatec 8852 AC Booster pump Solenoid ESO Pressure Switch
1 x	709C, Disc Shape Auto Shut Off Valve 4-way Four Way Valve
1 x	CPR-150G, Pressure Regulator with Pressure Gauge (0-125 psi)
1 x	4044-K qty 2 Male Elbow Fitting Compression type 1/4"
2 x	Optional 225UP 5th stage Inline Alkaline upgrade(includes media)
1 x	O-RING FOR WH10 WHOLE HOUSE SYSTEM HOUSING BIG BLUE 10" CANISTER
2 x	701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
1 x	310, 2nd stage CTA 10 US Membrane filter
1 x	FRQ200, Flow Restrictor 200ML / min
1 x	4064K Male Connector Elbow 3/8 OD Compression Fitting 1/4 NPT
2 x	OPTIONAL: 567 Filter Housing Wrench Case Opener WHOLE HOUSE WH
2 x	733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
2 x	532bpg, PAE RO water pressure tank blue bladder gauge valve 4G
1 x	718xl, Tubing 100 feet 1/4" white tube LLDPE PE for drinking wat
1 x	SET8855 Aquatec 5853 Booster Pump Assembly for Aeroponics System
1 x	TMR-220V-2A Aquatec TACS234-48 Transformer Power Supply EuroPlug
2 x	4044-K Male Elbow Fitting Compression type 1/4" OD 1/4" NPT
2 x	BUNDLE PACK Annual Filter Kit FK4 WaterGeneral 585 106 (4 ITEMS)
3 x	532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x	PSW-240 Aquatec Pressure Switch 40 psi shut off 1/4" tubing TSO
1 x	818, DI Resin Refill Bag 16oz (good for up to three refills)
4 x	Optional: 564 Membrane Filter Housing Wrench Opener
1 x	581, Ice Maker Hookup Kit Connect RO water to Fridge Ice Maker
2 x	MK200, Maintenance kit for Rotek Systems RCT-103 and RTF-265
1 x	799, Siphon Pump Drinking Water Liquid Fluid Oil Manual Trasfer
1 x	Optional 5th or 6th Stage upgrade inline DI filter(color change)
2 x	6044-combo Compression Type Fitting Elbow and Tee fitting
1 x	CDP6800T110V, AQUATEC Booster Pump Transformer 6840-2J03-B224
1 x	PSW-360 Aquatec Pressure Switch 60 psi shut off 3/8" tubing TSO
1 x	FM60, STEEL BRACKET TRIPLE HOUSING 10" STANDARD FOR RO MOUNT
3 x	CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
2 x	Optional: 566 Filter Housing Wrench Opener WaterGeneral System
2 x	MK550, Maintenance kit for RO585, RD102, RD106, RO6, K5, K6
1 x	SV-24DC-14, Solenoid Valve ESO 1/4" plastic, 24V DC
1 x	SET8855-300 Aquatec 5853 Booster Pump Assembly for 300GPD RO Sys
1 x	HK120-P-220V KoolerMax Aeroponics Hydroponics RO + Booster Pump
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle RD106
5 x	Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x	FPK11, High Quality Fitting and Connector 1/4" (Value-Pack)
1 x	CP-OR55, O-RING FOR MEMBRANE FILTER HOUSING WaterGeneral Systems
1 x	759, Aquatec Demand Delivery Pump 5853-7E12-J524 Commercial 1.7G
1 x	365, 4th stage TFC 50/65 US membrane filter (replace 2-3 yrs)
1 x	SVkit, Pump Shutoff Switch Kit for Aquatec Booster Pumps ESO TSO
1 x	3rd stage C10 carbon block filter (replace every 6-12 months)
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle AR122
1 x	O-RING RINGS FOR WH20 WHOLE HOUSE SYSTEM HOUSING BIG BLUE 20"
1 x	4th stage TFC 75/85 US membrane filter (every 2-3 yrs) M75
2 x	752set, DC Booster Pump Transformer Solenoid Pressure Switch All
2 x	Parts, Ro Water System Installation Parts Bag 1/4"
2 x	214, Clear Inline Filter Cartridge Empty Case
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle K5
1 x	CDP8800, AQUATEC CDP8852-2J03-B424 Booster Pump Only Fitting
1 x	Optional 566 Filter Housing Wrench Case Opener KoolerMax System
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle K5150P
1 x	701C, FHC1014 Filter Housing Chamber Casing Clear Color 1/4 FPT
1 x	718TB38, Tubing, 20 feet 3/8" white LLDPE PE for drinking water
1 x	SV-24DC-38-Brass KSD Solenoid Valve 3/8" brass 24V DC ESO
1 x	B1034, 10" Big Blue Filter Housing Cartridge WH5 WH10 WH1134
1 x	709, Automatic Shut Off Valve 4-way Four Way Valve
1 x	FM90, STEEL BRACKET SINGLE HOUSING MOUNTING BIG BLUE WH SYSTEM
1 x	745, AFAN0409 Female Garden Hose / Laundry Hose Adapter
1 x	399, 4th stage TFC-100 US membrane filter (every 2-3 yrs)
1 x	385, 4th stage TFC 75/85 US membrane filter (every 2-3 yrs)
1 x	532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x	4042-K Male Elbow Fitting Compression type(membrane housing use)
1 x	EMT-10, Empty Filter Cartridge Casing Housing
1 x	SET68, AQUATEC 6840 AC Pump Set Solenoid ESO Pressure Switch SET
1 x	PSW-340 Aquatec Pressure Switch 40 psi shut off 3/8" tubing TSO
1 x	SV-24AC-14, Solenoid Valve ESO for Aquatec pump 1/4" wiring
1 x	HK120-P-TK-220V for EURO 220V / 50Hz
1 x	720, Feed Water Adapter with Needle Valve
1 x	706, Membrane Filter Casing Housing Assembly
1 x	TMR-220V-1A Aquatec TACS234-19 Transformer Power Supply EuroPlug
1 x	ACT-820-JG Aquatec Pulsation Dampener Accumulator Pressure Tank
1 x	SV-110AC-14, Solenoid Valve 1/4" plastic 110VAC ESO
3 x	KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x	Special, Single Stage Housing Bracket Shell Connection Kit
1 x	5th Stage pn215 Refillable inline DI filter (color change)
1 x	FPK, 6 pcs Fitting Pack Union Connector 3/8 x 1/4 inch
1 x	CP-KOR24, O-RING Oring FOR KOOLERMAX MEMBRANE FILTER HOUSING
1 x	CKV0402, Blue color Elbow Check Valve Elbow Type
1 x	.AR104H High Efficiency Membrane Aquarium Reef Aeroponics RO DI
2 x	KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x	277, SED1005BB Big Blue 5 micron sediment filter 10"
2 x	B2010, 20" Big Blue Filter Housing Cartridge WH20 WH25 WH250
2 x	205 2nd stage solid carbon block filter (replace every 12 month)
1 x	IM60, Ice Maker or RV Water Filter, Inline Typle
1 x	PSW-380 Aquatec Pressure Switch 80 psi shut off 3/8" tubing TSO
1 x	Special, Output Conversion Kit Convert from 1/4" to 3/8"
1 x	PSW-260 Aquatec Pressure Switch 60 psi shut off 1/4" tubing TSO
1 x	727, Feed Water Adapter 3/8" compression adapter 1/4" inline bal
1 x	1st stage SF05 sediment filter (replace every 6-12 months)
1 x	741-38, Diverter Valve for RO DI Water Systems
1 x	205, 3rd stage solid carbon block filter (replace every 12 month
1 x	215, 5th or 6th Stage Refillable inline DI filter (color change)
1 x	FRQ420, Flow Restrictor 420ML / min
1 x	FM40, STEEL BRACKET DOUBLE HOUSING 10" STANDARD
1 x	CBV-0404, Tank Ball Valve to 1/4 tubing standard RO tank size
1 x	FPK, 6 pcs Fitting Pack Union Connector 1/2 x 3/8 inch

View Cart	$4,782.81