Barr Aquatic Systems

DIY and Accessories:

Not currently available, but support is still offered for existing customers.


Cast acrylic of any dimensions, rough cut or finish cut to size is available. Cast acrylic tube in 8", 6", 4", 3.5" and 2.5" diameters. Please email for a quote for your application. I normally stock Clear sheet in 1/2", 3/8" and 1/4", Translucent black in 3/8", and Black in 1/2" and 1/4". Blue is not normally available, unless you need a half sheet or more.

Injector Kits:

This kit includes everything you need to make a single Beckett injector to add to your own project. Just glue the last flange on to your 2.5" OD, 2.25" ID cast acrylic tube, polish the edges if desired, and you are ready to go. Comes with the appropriate plumbing fittings to adapt to a 1" male fitting, or a 1" ID hose.

  • Four flanges for 2.5" OD tube- Tube top, injector bottom, injector top, cap.
  • 1/4" John Guest air valve
  • Rubber mounting grommet
  • Nylon bushing
  • 2.5" tube for housing
  • Sch-80 Ell and 1" hose-barb
  • Two O-rings
  • Eight thumbscrews
  • Assembled, ready for the last flange to be glued.

CO2 tanks

CO2 Tank:CO2 Calcium Reactor Tank for Reef Tanks

All aluminum CO2 tanks with valves and valve protection collar. Shipped empty directly to you from the distributor.

  • 5 Pound Capacity Aluminum CO2 Bottle- 19" tall with valve
  • 10 Pound Capacity Aluminum CO2 Bottle- 22" tall with valve
  • 20 Pound Capacity Aluminum CO2 Bottle- 28" tall with valve
CO2 tanks

CO2 Regulator: CO2 Regulator for Calcium Reactors for Reef Tanks

Milwaukee CO2 Regulator with High-side and Low-side gauges, solenoid, bubble counter and needle valve.

CO2 regulator

pH Controller:

pH controller with standard plug socket support, .1 resolution, includes AC adapter. Automatically turns off the CO2 solenoid when the pH gets below the set point. Turns it back on again when it rises above the set point. 7.0 Calibration fluid included.

pH Controller

Banjo Quick Disconnects:

1" Banjo quick disconnects make it easy to remove and attach the plumbing to any skimmer. Includes the Male and Female pair, 1" SCH80 elbow, and a 3" SCH80 F-F adapter. One set required per injector. Can be used on any skimmer.

Banjo Quick Disconnects


Flanges are available as a pair, with thumbscrews. Each flange has an appropriate number of key-hole slots in one piece, and -20 tapped holes with 3/4" thumbscrews in the mating piece. The bottom one has an O-ring groove and an O-ring.

Flanges are available in 3/8" cast translucent black. Flanges are made for 1/8" wall cast tube. 1/4" wall tube flanges available for $5 extra per set.

  3/8" Cast Acrylic
5" dia., 4 thumb screws, for 2.5" dia. 1/8" wall cast acrylic tube- FL110:
8.75" dia, 6 thumbscrews, for 6" dia. 1/8" wall cast acrylic tube- FL310:
10.75" dia, 8 thumbscrews, for 8" dia. 1/8" wall cast acrylic tube- FL410:
12.75" dia, 10 thumbscrews, for 10" dia. 1/8" wall cast acrylic tube- FL510:
Note: Prices are for a matched PAIR.


1/8" Buna-N O-rings in the following sizes: (All OD's) 1-3/16", 1-1/4" (for around a Beckett), 2.5", 2-5/8", 3", 4", 4-3/8", 4.5", 6.5", and 8.5"
In 3/16" Buna-N I have 2" (suitable for around a 1" bulkhead).

A DIY set for a skimmer similar to a SK1200 would consist of one 1-3/16", one 1-1/4", two 6.5", and two 3.5"

Beckett Foaming heads:

Beckett # 1408 Foam head: BK100.

Beckett Foaming Head