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	PSW-360 Aquatec Pressure Switch 60 psi shut off 3/8" tubing TSO
2 x	701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
1 x	.RO260 Aquarium 300G REVERSE OSMOSIS AEROPONICS HYDROPONICS RO
1 x	SV-24DC-14, Solenoid Valve ESO 1/4" plastic, 24V DC
1 x	PSW-340 Aquatec Pressure Switch 40 psi shut off 3/8" tubing TSO
2 x	752, DC Booster Pump w/ Transformer
2 x	4th stage TFC150 US membrane filter (every 2-3 yrs)M150 P/N3150
2 x	733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
2 x	Parts, Ro Water System Installation Parts Bag 1/4"
2 x	MK550, Maintenance kit for RO585, RD102, RD106, RO6, K5, K6
1 x	TMR-DC-1212, Transformer Power Supply for Delivery Demand Pump
2 x	752set, DC Booster Pump Transformer Solenoid Pressure Switch All
1 x	565, Digital Pressure Gauge Tester Monitor
2 x	CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
2 x	818, DI Resin Refill Bag 16oz (good for up to three refills)
3 x	KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x	3rd stage C10 carbon block filter (replace every 6-12 months)
1 x	215, 5th or 6th Stage Refillable inline DI filter (color change)
1 x	756SET, Aquatec Permeate Pump Reverse Osmosis System ERP1000
1 x	AQF-600-105, Flow Meter Panel Mount 1/2" MPT
1 x	6th Stage pn215 Refillable inline DI filter (color change)
1 x	204, 2nd stage GAC filter (replace every 6-12 months)
5 x	Optional: 564 Membrane Filter Housing Wrench Opener
2 x	MK800, Maintenance kit for AR122, AR125, HK120, RD150, RO155
1 x	1/2" NPT Digiflow Digital Flow Meter count up total Water Gallon
5 x	Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x	ERP1000 Aquatec Permeate Pump Reverse Osmosis RO System USA made
1 x	1044-K Male Connector 1/4 OD x 1/4 NPT Compression Fitting
1 x	SV-24AC-38, KSD Solenoid Valve ESO 3/8" brass, 24V AC
1 x	5th Stage pn215 Refillable inline DI filter (color change)
1 x	FM-8100T, DigiFlow Digital Water Flow Rate Meter 56" cable
1 x	TMR-220V-1A Aquatec TACS234-19 Transformer Power Supply EuroPlug
2 x	532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x	213, 5th stage inline carbon postfilter (replace every 12months)
1 x	HK120-P-TK-220V for EURO 220V / 50Hz
2 x	1st stage SF05 sediment filter (replace every 6-12 months)
1 x	ERP500 Aquatec Permeate Pump Reverse Osmosis RO System USA made
1 x	WT-bac, Water Testing Kit, Bacteria Test
1 x	399, 4th stage TFC-100 US membrane filter (every 2-3 yrs)
2 x	205, 3rd stage solid carbon block filter (replace every 12month)
2 x	CPR-150G, Pressure Regulator with Pressure Gauge (0-125 psi)
2 x	NM-5001C, HONEYWELL COUNTERTOP WATER FILTER DISCONTINUED SW1
1 x	HK120-PUMP KoolerMax Aeroponics Hydroponics System Booster Pump
1 x	CDP6800, AQUATEC CDP6800 Booster Pump Only 6840-2J03-B224
1 x	Optional 5th or 6th Stage upgrade inline DI filter(color change)
1 x	SET88 Aquatec 8852 AC Booster pump Solenoid ESO Pressure Switch
1 x	.AR104H High Efficiency Membrane Aquarium Reef Aeroponics RO DI
1 x	581, Ice Maker Hookup Kit Connect RO water to Fridge Ice Maker
2 x	BUNDLE PACK ANNUAL FILTER KIT FK3 WaterGeneral 102 150 (3 ITEMS)
1 x	MK225, Maintenance kit for Honeywell RO9100 Filtercold RO5 AV180
1 x	Panel 3/4" 6710M-66TM Digital Flow Meter count up GPM 115V
1 x	Optional 566 Filter Housing Wrench Case Opener KoolerMax System
1 x	FPK, 6 pcs Fitting Pack Union Connector 1/2 x 3/8 inch
2 x	Annual Filter Kit Koolermax Series KPAK-4 Sediment Carbon Block
1 x	2nd stage C10 carbon block filter (replace every 6-12 months)
1 x	578b, TDS-3 Battery Batteries for #578 TDS Water Quality Meter
1 x	TMR-25A, 2.5 AMP Transformer Power Supply Ballast for 8800 5853
1 x	TMR-AQT-2A, Transformer Power Supply Aquatec TACS114-48 for 8800
1 x	NM-5104, HONEYWELL COUNTERTOP WATER FILTER DISCONTINUED SW1
1 x	SET68, AQUATEC 6840 AC Pump Set Solenoid ESO Pressure Switch SET
1 x	Discontinued RD150
1 x	TMR-220V-2A Aquatec TACS234-48 Transformer Power Supply EuroPlug
1 x	FPK, High Quality Fitting and Connector 3/8" (Value-Pack)
1 x	Annual Filter Kit Koolermax Series KPAK-3 Sediment Carbon Block
1 x	KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x	213, 5th or 6th stage inline carbon filter (replace in 12 mons)
1 x	N-14-1M, Nipple Fitting connector between standard RO housing
1 x	2542-K, Female Connector 1/4 OD 1/8 FNPT Compression Fitting
1 x	AQUATEC CDP 8852-2J03-B424 Booster Pump 220V Euro Transformer
1 x	215, 5th or 6th Stage Refillable inline DI filter (color change)
2 x	532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle AR122
1 x	3150, 4th stage TFC-150 US membrane filter (every 2-3 yrs)
2 x	Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x	4064K Male Connector Elbow 3/8 OD Compression Fitting 1/4 NPT
1 x	FM214G, FM-6710M DigiFlow Digital Water Flow Meter Gauge Moniter
1 x	578, TDS Water Quality Meter tds-3
1 x	SV-24DC-38-Brass KSD Solenoid Valve 3/8" brass 24V DC ESO
1 x	SV-24AC-14, Solenoid Valve for Aquatec pump only 1/4" 24VAC ESO
1 x	PSW-380 Aquatec Pressure Switch 80 psi shut off 3/8" tubing TSO
1 x	7044-K Union Tee Connector Fitting Compression type 1/4"
1 x	773, AC Booster Pump Assembly Large 150-200GPD RO systems SET
1 x	HK120-P-TK for USA 110V / 60Hz
1 x	HK120 KoolerMax Aeroponics Hydroponics 150G RO Filtration System
1 x	UC7000 HONEYWELL UNDER THE COUNTER WATER FILTER (WHITE, LARGE)
1 x	3/4" NPT Digiflow Digital Flow Meter count up total Water Gallon
1 x	FM-8000T, DigiFlow Digital Water Flow Meter Rate Count Down
1 x	318, 4th stage TFC-18 US membrane filter (replace every 2-3 yrs)
1 x	Discontinued RO155
1 x	CKV0402, Blue color Elbow Check Valve Elbow Type
1 x	TMR-DC-2412, Transformer Power Supply for #752 Booster Pump

View Cart	$5,408.35

1 x	PSW-360 Aquatec Pressure Switch 60 psi shut off 3/8" tubing TSO
2 x	701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
1 x	.RO260 Aquarium 300G REVERSE OSMOSIS AEROPONICS HYDROPONICS RO
1 x	SV-24DC-14, Solenoid Valve ESO 1/4" plastic, 24V DC
1 x	PSW-340 Aquatec Pressure Switch 40 psi shut off 3/8" tubing TSO
2 x	752, DC Booster Pump w/ Transformer
2 x	4th stage TFC150 US membrane filter (every 2-3 yrs)M150 P/N3150
2 x	733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
2 x	Parts, Ro Water System Installation Parts Bag 1/4"
2 x	MK550, Maintenance kit for RO585, RD102, RD106, RO6, K5, K6
1 x	TMR-DC-1212, Transformer Power Supply for Delivery Demand Pump
2 x	752set, DC Booster Pump Transformer Solenoid Pressure Switch All
1 x	565, Digital Pressure Gauge Tester Monitor
2 x	CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
2 x	818, DI Resin Refill Bag 16oz (good for up to three refills)
3 x	KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x	3rd stage C10 carbon block filter (replace every 6-12 months)
1 x	215, 5th or 6th Stage Refillable inline DI filter (color change)
1 x	756SET, Aquatec Permeate Pump Reverse Osmosis System ERP1000
1 x	AQF-600-105, Flow Meter Panel Mount 1/2" MPT
1 x	6th Stage pn215 Refillable inline DI filter (color change)
1 x	204, 2nd stage GAC filter (replace every 6-12 months)
5 x	Optional: 564 Membrane Filter Housing Wrench Opener
2 x	MK800, Maintenance kit for AR122, AR125, HK120, RD150, RO155
1 x	1/2" NPT Digiflow Digital Flow Meter count up total Water Gallon
5 x	Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x	ERP1000 Aquatec Permeate Pump Reverse Osmosis RO System USA made
1 x	1044-K Male Connector 1/4 OD x 1/4 NPT Compression Fitting
1 x	SV-24AC-38, KSD Solenoid Valve ESO 3/8" brass, 24V AC
1 x	5th Stage pn215 Refillable inline DI filter (color change)
1 x	FM-8100T, DigiFlow Digital Water Flow Rate Meter 56" cable
1 x	TMR-220V-1A Aquatec TACS234-19 Transformer Power Supply EuroPlug
2 x	532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x	213, 5th stage inline carbon postfilter (replace every 12months)
1 x	HK120-P-TK-220V for EURO 220V / 50Hz
2 x	1st stage SF05 sediment filter (replace every 6-12 months)
1 x	ERP500 Aquatec Permeate Pump Reverse Osmosis RO System USA made
1 x	WT-bac, Water Testing Kit, Bacteria Test
1 x	399, 4th stage TFC-100 US membrane filter (every 2-3 yrs)
2 x	205, 3rd stage solid carbon block filter (replace every 12month)
2 x	CPR-150G, Pressure Regulator with Pressure Gauge (0-125 psi)
2 x	NM-5001C, HONEYWELL COUNTERTOP WATER FILTER DISCONTINUED SW1
1 x	HK120-PUMP KoolerMax Aeroponics Hydroponics System Booster Pump
1 x	CDP6800, AQUATEC CDP6800 Booster Pump Only 6840-2J03-B224
1 x	Optional 5th or 6th Stage upgrade inline DI filter(color change)
1 x	SET88 Aquatec 8852 AC Booster pump Solenoid ESO Pressure Switch
1 x	.AR104H High Efficiency Membrane Aquarium Reef Aeroponics RO DI
1 x	581, Ice Maker Hookup Kit Connect RO water to Fridge Ice Maker
2 x	BUNDLE PACK ANNUAL FILTER KIT FK3 WaterGeneral 102 150 (3 ITEMS)
1 x	MK225, Maintenance kit for Honeywell RO9100 Filtercold RO5 AV180
1 x	Panel 3/4" 6710M-66TM Digital Flow Meter count up GPM 115V
1 x	Optional 566 Filter Housing Wrench Case Opener KoolerMax System
1 x	FPK, 6 pcs Fitting Pack Union Connector 1/2 x 3/8 inch
2 x	Annual Filter Kit Koolermax Series KPAK-4 Sediment Carbon Block
1 x	2nd stage C10 carbon block filter (replace every 6-12 months)
1 x	578b, TDS-3 Battery Batteries for #578 TDS Water Quality Meter
1 x	TMR-25A, 2.5 AMP Transformer Power Supply Ballast for 8800 5853
1 x	TMR-AQT-2A, Transformer Power Supply Aquatec TACS114-48 for 8800
1 x	NM-5104, HONEYWELL COUNTERTOP WATER FILTER DISCONTINUED SW1
1 x	SET68, AQUATEC 6840 AC Pump Set Solenoid ESO Pressure Switch SET
1 x	Discontinued RD150
1 x	TMR-220V-2A Aquatec TACS234-48 Transformer Power Supply EuroPlug
1 x	FPK, High Quality Fitting and Connector 3/8" (Value-Pack)
1 x	Annual Filter Kit Koolermax Series KPAK-3 Sediment Carbon Block
1 x	KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x	213, 5th or 6th stage inline carbon filter (replace in 12 mons)
1 x	N-14-1M, Nipple Fitting connector between standard RO housing
1 x	2542-K, Female Connector 1/4 OD 1/8 FNPT Compression Fitting
1 x	AQUATEC CDP 8852-2J03-B424 Booster Pump 220V Euro Transformer
1 x	215, 5th or 6th Stage Refillable inline DI filter (color change)
2 x	532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle AR122
1 x	3150, 4th stage TFC-150 US membrane filter (every 2-3 yrs)
2 x	Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x	4064K Male Connector Elbow 3/8 OD Compression Fitting 1/4 NPT
1 x	FM214G, FM-6710M DigiFlow Digital Water Flow Meter Gauge Moniter
1 x	578, TDS Water Quality Meter tds-3
1 x	SV-24DC-38-Brass KSD Solenoid Valve 3/8" brass 24V DC ESO
1 x	SV-24AC-14, Solenoid Valve for Aquatec pump only 1/4" 24VAC ESO
1 x	PSW-380 Aquatec Pressure Switch 80 psi shut off 3/8" tubing TSO
1 x	7044-K Union Tee Connector Fitting Compression type 1/4"
1 x	773, AC Booster Pump Assembly Large 150-200GPD RO systems SET
1 x	HK120-P-TK for USA 110V / 60Hz
1 x	HK120 KoolerMax Aeroponics Hydroponics 150G RO Filtration System
1 x	UC7000 HONEYWELL UNDER THE COUNTER WATER FILTER (WHITE, LARGE)
1 x	3/4" NPT Digiflow Digital Flow Meter count up total Water Gallon
1 x	FM-8000T, DigiFlow Digital Water Flow Meter Rate Count Down
1 x	318, 4th stage TFC-18 US membrane filter (replace every 2-3 yrs)
1 x	Discontinued RO155
1 x	CKV0402, Blue color Elbow Check Valve Elbow Type
1 x	TMR-DC-2412, Transformer Power Supply for #752 Booster Pump

View Cart	$5,408.35