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	4th stage TFC 75/85 US membrane filter (every 2-3 yrs) M75
2 x	Parts, Ro Water System Installation Parts Bag 1/4"
1 x	673, Replacement UV Lamp Light for 602 (6 Watts)
1 x	.AR104H High Efficiency Membrane Aquarium Reef Aeroponics RO DI
2 x	KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x	BUNDLE PACK ANNUAL FILTER KIT FK3 WaterGeneral 102 150 (3 ITEMS)
1 x	CPR-150G, Pressure Regulator with Pressure Gauge (0-125 psi)
1 x	B2012, 20" Long Slim Filter Cartridge Housing RO260 RD322
4 x	1st stage SF05 sediment filter (replace every 6-12 months)
1 x	DB40, DI Resin Refill Bag for DI210, RD322
1 x	UC SHELL, Honeywell UC7000 Empty System Only No Filter
1 x	WT-bac, Water Testing Kit, Bacteria Test
2 x	4th stage TFC150 US membrane filter (every 2-3 yrs)M150 P/N3150
1 x	WH-25, Whole House Water Treatment Sediment Filter System 20" Bi
1 x	Special, Single Stage Housing Bracket Shell Connection Kit
1 x	Panel 1/4 Digital Flow Meter count up total Gallons GPM 56"cable
3 x	205, 3rd stage solid carbon block filter (replace every 12month)
1 x	FHP2012, 20" long Filter Cartridge Casing Housing RO260 RD322
6 x	Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x	.AR122 KoolerMax 6STAGE Aquarium Reef REVERSE OSMOSIS RODI WATER
4 x	Optional: 564 Membrane Filter Housing Wrench Opener
1 x	205, 2nd stage carbon block filter (replace every 12 months)
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle RO6ALK
1 x	Special Filter Kit Koolermax dealer distribution kit
1 x	UC7000 HONEYWELL UNDER THE COUNTER WATER FILTER (WHITE, LARGE)
2 x	KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x	Optional 5th or 6th Stage upgrade inline DI filter(color change)
1 x	NM-5104, HONEYWELL COUNTERTOP WATER FILTER DISCONTINUED SW1
1 x	1070, PAE LARGE RO Storage Pressure Tank 14 GALLON 14G
3 x	3rd stage C10 carbon block filter (replace every 6-12 months)
1 x	MK550, Maintenance kit for RO585, RD102, RD106, RO6, K5, K6
1 x	O-RING RINGS FOR WH20 WHOLE HOUSE SYSTEM HOUSING BIG BLUE 20"
1 x	DM-2, Inline Dual TDS monitor (meter) for RO DI System DM2
1 x	KF310UP, SUBSTITUTE/Upgrade to KYTON FAUCET POLISHED CHROME FINI
1 x	Annual Filter Kit Koolermax Series KPAK-3 Sediment Carbon Block
2 x	OPTIONAL: 567 Filter Housing Wrench Case Opener WHOLE HOUSE WH
1 x	WSACF-150T, Whole House Water Treatment ACF-150T
1 x	201, 1st stage sediment filter (replace every 6-12 months)
1 x	565, Digital Pressure Gauge Tester Monitor
1 x	KF511UP SUBSTITUTE/Upgrade Faucet CHROME GOLD TRIM CROSS HANDLE
1 x	B1034, 10" Big Blue Filter Housing Cartridge WH5 WH10 WH1134
1 x	SC209, Specialty Filter Nitrate Removal Filter
1 x	Discontinued RD102
2 x	Optional 566 Filter Housing Wrench Case Opener KoolerMax System
1 x	733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
2 x	213, 4th stage inline carbon filter (replace every 12 months)
2 x	MK800, Maintenance kit for AR122, AR125, HK120, RD150, RO155
1 x	Discontinued RD150
1 x	B2010, 20" Big Blue Filter Housing Cartridge WH20 WH25 WH250
1 x	BBK20, Replacement Filter 20" Big Blue Whole House WH-2201 WH250
1 x	701C, FHC1014 Filter Housing Chamber Casing Clear Color 1/4 FPT
1 x	KT-103, Optional Manual Membrane Flush Valve
1 x	EMT-10, Empty Filter Cartridge Casing Housing
1 x	277, SED1005BB Big Blue 5 micron sediment filter 10"
4 x	532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x	532wpg, PAE RO water pressure white tank bladder gauge valve 4G
1 x	385, 4th stage TFC 75/85 US membrane filter (every 2-3 yrs)
1 x	Liter Digiflow 1/4NPT Digital Flow Meter count up total Water
1 x	FM214G, FM-6710M DigiFlow Digital Water Flow Meter Gauge Moniter
1 x	718TB38, Tubing, 20 feet 3/8" white LLDPE PE for drinking water
1 x	204, 2nd stage GAC filter (replace every 6-12 months)
1 x	Annual Filter Kit Koolermax Series KPAK-4 Sediment Carbon Block
1 x	578b, TDS-3 Battery Batteries for #578 TDS Water Quality Meter
1 x	818, DI Resin Refill Bag 16oz (good for up to three refills)
1 x	2.CB2010, 2nd stage carbon block filter 20" inch for RD322 RO260
1 x	Discontinued RO585NTF
2 x	2nd stage C10 carbon block filter (replace every 6-12 months)
1 x	Aeroponics HighPressure Booster Pump Aquatec CDP5853 Transformer
1 x	AQUATEC CDP 8852-2J03-B424 Booster Pump 220V Euro Transformer
1 x	316UP, Upgrade for CTA20 gal/day (includes US Membrane filter)
1 x	3150, 4th stage TFC-150 US membrane filter (every 2-3 yrs)
1 x	CP-KOR24, O-RING Oring FOR KOOLERMAX MEMBRANE FILTER HOUSING
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle AR150P
1 x	FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch
1 x	752, DC Booster Pump w/ Transformer
1 x	SVkit, Pump Shutoff Switch Kit for Aquatec Booster Pumps ESO TSO
3 x	532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x	PSW-340 Aquatec Pressure Switch 40 psi shut off 3/8" tubing TSO
2 x	205 2nd stage solid carbon block filter (replace every 12 month)
1 x	Optional 225UP 5th stage Inline Alkaline upgrade(includes media)
1 x	TMR-220V-2A Aquatec TACS234-48 Transformer Power Supply EuroPlug
1 x	215, 5th or 6th Stage Refillable inline DI filter (color change)
1 x	NM-5102, HONEYWELL COUNTERTOP WATER FILTER DISCONTINUED SW1
1 x	6044-combo Compression Type Fitting Elbow and Tee fitting
1 x	MK200, Maintenance kit for Rotek Systems RCT-103 and RTF-265
1 x	568,Heavy-Duty Filter Housing Wrench, HoneyWell or FilterCold
1 x	FM90, STEEL BRACKET SINGLE HOUSING MOUNTING BIG BLUE WH SYSTEM
1 x	SV-24AC-14, Solenoid Valve ESO for Aquatec pump 1/4" wiring
2 x	7044-K Union Tee Connector Fitting Compression type 1/4"
1 x	756SET, Aquatec Permeate Pump Reverse Osmosis System ERP1000
2 x	ACT-820-JG Aquatec Pulsation Dampener Accumulator Pressure Tank
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle RD102
1 x	PSW-280 Aquatec Pressure Switch 80 psi shut off 1/4 tubing TSO
2 x	PSW-260 Aquatec Pressure Switch 60 psi shut off 1/4" tubing TSO
1 x	CP-KOR45, O RING FOR KOOLERMAX BOTTOM FILTER HOUSING CASING
1 x	TMR-AQT-2A, Transformer Power Supply Aquatec TACS114-48 for 8800
1 x	CDP6800, AQUATEC CDP6800 Booster Pump Only 6840-2J03-B224
1 x	5th or 6th Stage IC21 inline carbon filter (every 6 to 12 mons)
1 x	FV-15, Bobby Float Valve Top Mount RM292P-N UNS CEL NSF USA
1 x	718TB12, Half Inch Tubing 20 feet 1/2" LLDPE PE White Tube
1 x	318, 4th stage TFC-18 US membrane filter (replace every 2-3 yrs)
1 x	Conversion Kit, Convert Aquarium to Drinking RO Water System
1 x	UU Clips Pair Membrane to Filter, 2.5" to 2"
1 x	BUNDLE PACK Annual Filter Kit FK4 WaterGeneral 585 106 (4 ITEMS)
1 x	531, PAE RO Storage Pressure Osmosis Water Tank Container 3G
1 x	CDP8800, AQUATEC CDP8852-2J03-B424 Booster Pump Only Fitting
1 x	799, Siphon Pump Drinking Water Liquid Fluid Oil Manual Trasfer

View Cart	$7,786.77

1 x	4th stage TFC 75/85 US membrane filter (every 2-3 yrs) M75
2 x	Parts, Ro Water System Installation Parts Bag 1/4"
1 x	673, Replacement UV Lamp Light for 602 (6 Watts)
1 x	.AR104H High Efficiency Membrane Aquarium Reef Aeroponics RO DI
2 x	KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x	BUNDLE PACK ANNUAL FILTER KIT FK3 WaterGeneral 102 150 (3 ITEMS)
1 x	CPR-150G, Pressure Regulator with Pressure Gauge (0-125 psi)
1 x	B2012, 20" Long Slim Filter Cartridge Housing RO260 RD322
4 x	1st stage SF05 sediment filter (replace every 6-12 months)
1 x	DB40, DI Resin Refill Bag for DI210, RD322
1 x	UC SHELL, Honeywell UC7000 Empty System Only No Filter
1 x	WT-bac, Water Testing Kit, Bacteria Test
2 x	4th stage TFC150 US membrane filter (every 2-3 yrs)M150 P/N3150
1 x	WH-25, Whole House Water Treatment Sediment Filter System 20" Bi
1 x	Special, Single Stage Housing Bracket Shell Connection Kit
1 x	Panel 1/4 Digital Flow Meter count up total Gallons GPM 56"cable
3 x	205, 3rd stage solid carbon block filter (replace every 12month)
1 x	FHP2012, 20" long Filter Cartridge Casing Housing RO260 RD322
6 x	Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x	.AR122 KoolerMax 6STAGE Aquarium Reef REVERSE OSMOSIS RODI WATER
4 x	Optional: 564 Membrane Filter Housing Wrench Opener
1 x	205, 2nd stage carbon block filter (replace every 12 months)
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle RO6ALK
1 x	Special Filter Kit Koolermax dealer distribution kit
1 x	UC7000 HONEYWELL UNDER THE COUNTER WATER FILTER (WHITE, LARGE)
2 x	KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x	Optional 5th or 6th Stage upgrade inline DI filter(color change)
1 x	NM-5104, HONEYWELL COUNTERTOP WATER FILTER DISCONTINUED SW1
1 x	1070, PAE LARGE RO Storage Pressure Tank 14 GALLON 14G
3 x	3rd stage C10 carbon block filter (replace every 6-12 months)
1 x	MK550, Maintenance kit for RO585, RD102, RD106, RO6, K5, K6
1 x	O-RING RINGS FOR WH20 WHOLE HOUSE SYSTEM HOUSING BIG BLUE 20"
1 x	DM-2, Inline Dual TDS monitor (meter) for RO DI System DM2
1 x	KF310UP, SUBSTITUTE/Upgrade to KYTON FAUCET POLISHED CHROME FINI
1 x	Annual Filter Kit Koolermax Series KPAK-3 Sediment Carbon Block
2 x	OPTIONAL: 567 Filter Housing Wrench Case Opener WHOLE HOUSE WH
1 x	WSACF-150T, Whole House Water Treatment ACF-150T
1 x	201, 1st stage sediment filter (replace every 6-12 months)
1 x	565, Digital Pressure Gauge Tester Monitor
1 x	KF511UP SUBSTITUTE/Upgrade Faucet CHROME GOLD TRIM CROSS HANDLE
1 x	B1034, 10" Big Blue Filter Housing Cartridge WH5 WH10 WH1134
1 x	SC209, Specialty Filter Nitrate Removal Filter
1 x	Discontinued RD102
2 x	Optional 566 Filter Housing Wrench Case Opener KoolerMax System
1 x	733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
2 x	213, 4th stage inline carbon filter (replace every 12 months)
2 x	MK800, Maintenance kit for AR122, AR125, HK120, RD150, RO155
1 x	Discontinued RD150
1 x	B2010, 20" Big Blue Filter Housing Cartridge WH20 WH25 WH250
1 x	BBK20, Replacement Filter 20" Big Blue Whole House WH-2201 WH250
1 x	701C, FHC1014 Filter Housing Chamber Casing Clear Color 1/4 FPT
1 x	KT-103, Optional Manual Membrane Flush Valve
1 x	EMT-10, Empty Filter Cartridge Casing Housing
1 x	277, SED1005BB Big Blue 5 micron sediment filter 10"
4 x	532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x	532wpg, PAE RO water pressure white tank bladder gauge valve 4G
1 x	385, 4th stage TFC 75/85 US membrane filter (every 2-3 yrs)
1 x	Liter Digiflow 1/4NPT Digital Flow Meter count up total Water
1 x	FM214G, FM-6710M DigiFlow Digital Water Flow Meter Gauge Moniter
1 x	718TB38, Tubing, 20 feet 3/8" white LLDPE PE for drinking water
1 x	204, 2nd stage GAC filter (replace every 6-12 months)
1 x	Annual Filter Kit Koolermax Series KPAK-4 Sediment Carbon Block
1 x	578b, TDS-3 Battery Batteries for #578 TDS Water Quality Meter
1 x	818, DI Resin Refill Bag 16oz (good for up to three refills)
1 x	2.CB2010, 2nd stage carbon block filter 20" inch for RD322 RO260
1 x	Discontinued RO585NTF
2 x	2nd stage C10 carbon block filter (replace every 6-12 months)
1 x	Aeroponics HighPressure Booster Pump Aquatec CDP5853 Transformer
1 x	AQUATEC CDP 8852-2J03-B424 Booster Pump 220V Euro Transformer
1 x	316UP, Upgrade for CTA20 gal/day (includes US Membrane filter)
1 x	3150, 4th stage TFC-150 US membrane filter (every 2-3 yrs)
1 x	CP-KOR24, O-RING Oring FOR KOOLERMAX MEMBRANE FILTER HOUSING
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle AR150P
1 x	FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch
1 x	752, DC Booster Pump w/ Transformer
1 x	SVkit, Pump Shutoff Switch Kit for Aquatec Booster Pumps ESO TSO
3 x	532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x	PSW-340 Aquatec Pressure Switch 40 psi shut off 3/8" tubing TSO
2 x	205 2nd stage solid carbon block filter (replace every 12 month)
1 x	Optional 225UP 5th stage Inline Alkaline upgrade(includes media)
1 x	TMR-220V-2A Aquatec TACS234-48 Transformer Power Supply EuroPlug
1 x	215, 5th or 6th Stage Refillable inline DI filter (color change)
1 x	NM-5102, HONEYWELL COUNTERTOP WATER FILTER DISCONTINUED SW1
1 x	6044-combo Compression Type Fitting Elbow and Tee fitting
1 x	MK200, Maintenance kit for Rotek Systems RCT-103 and RTF-265
1 x	568,Heavy-Duty Filter Housing Wrench, HoneyWell or FilterCold
1 x	FM90, STEEL BRACKET SINGLE HOUSING MOUNTING BIG BLUE WH SYSTEM
1 x	SV-24AC-14, Solenoid Valve ESO for Aquatec pump 1/4" wiring
2 x	7044-K Union Tee Connector Fitting Compression type 1/4"
1 x	756SET, Aquatec Permeate Pump Reverse Osmosis System ERP1000
2 x	ACT-820-JG Aquatec Pulsation Dampener Accumulator Pressure Tank
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle RD102
1 x	PSW-280 Aquatec Pressure Switch 80 psi shut off 1/4 tubing TSO
2 x	PSW-260 Aquatec Pressure Switch 60 psi shut off 1/4" tubing TSO
1 x	CP-KOR45, O RING FOR KOOLERMAX BOTTOM FILTER HOUSING CASING
1 x	TMR-AQT-2A, Transformer Power Supply Aquatec TACS114-48 for 8800
1 x	CDP6800, AQUATEC CDP6800 Booster Pump Only 6840-2J03-B224
1 x	5th or 6th Stage IC21 inline carbon filter (every 6 to 12 mons)
1 x	FV-15, Bobby Float Valve Top Mount RM292P-N UNS CEL NSF USA
1 x	718TB12, Half Inch Tubing 20 feet 1/2" LLDPE PE White Tube
1 x	318, 4th stage TFC-18 US membrane filter (replace every 2-3 yrs)
1 x	Conversion Kit, Convert Aquarium to Drinking RO Water System
1 x	UU Clips Pair Membrane to Filter, 2.5" to 2"
1 x	BUNDLE PACK Annual Filter Kit FK4 WaterGeneral 585 106 (4 ITEMS)
1 x	531, PAE RO Storage Pressure Osmosis Water Tank Container 3G
1 x	CDP8800, AQUATEC CDP8852-2J03-B424 Booster Pump Only Fitting
1 x	799, Siphon Pump Drinking Water Liquid Fluid Oil Manual Trasfer

View Cart	$7,786.77