Technical Information

Robust-Aire Systems 1, 2 & 3

Robust-Aire Diffusers
Diffusers are designed to provide a fine air bubble with the least amount of pressure. The base is made of durable plastic and a locking fill plug allows you to fill it with gravel or other weighted substrate. It has a raised design that keeps the diffusers performing at an optimal level above the pond bottom. A durable, bolted, strain relief attachment insures that the weighted tubing will not become detached during installation or maintenance. A check valve with Viton seals keeps water from entering the tubing when the system is not operating.

Enclosures
Robust-Aire systems 1, 2 & 3 are available with three options for enclosures:

A large base mount cabinet is included as the default method for the system.
•Dimensions are 22” x 17” x 19”H and includes
•120 volt receptacle or a 240 volt junction box.
•A single cooling fan provides 110 CFM ventilation.
•Compressor is mounted in the keyed, lockable cabinet.

Post mounted cabinet (PM) is mountable on an exterior wall or wooden post.
•Dimensions 19” x 12” x 12”H.
•120 volt receptacle or a 240 volt junction box.
•A single cooling fan provides 110 CFM ventilation.
•Compressor is mounted at the factory in the cabinet which is provided with
acoustical foam and a keyed cabinet lock.

No Cabinet (NC): This is desired when you want to install the compressor system in your own structure. Compressors need to be kept out of the weather in a ventilated area. Remote manifold is easily mounted via wood screws.

Weighted tubing
is available in easy to handle 100 foot coils. RA systems 1-3 include 100 feet of 3/8 tubing for each diffuser. Each coil is boxed and includes our full packet of barbed connectors and adapter fittings, and all-stainless steel tubing clamps. You will be prepared to make any connection necessary with the tubing kit. Additional 3/8” or 5/8” weighted tubing is available when additional length is needed.

Robust-Aire rocking piston compressors
•provide efficient, continuous-duty operation with minimal maintenance and quiet operation. Units are extremely quiet.
•Sound level is less than: 70 dB without cabinet (Window air conditioner), 65 dB with cabinet and acoustic sound proofing
(Normal conversation)
•Safely starts under pressure. Maximum operating depth 40 feet.
•Warranty: One year complete warranty on all parts 

 Robust-Aire Systems 4, 5 & 6

The Robust-Aire RA4 system includes 2 dual port rocking piston compressors, 2 valved aluminum manifolds, 400 feet of 3/8 inch Sure Sink weighted tubing, and 4 Robust Aire diffuser assembly.
The Robust-Aire RA5 system includes 2 rocking piston compressors, 1 dual port, 1 single port, 2 valved aluminum manifolds, 500 feet of 3/8 inch Sure Sink weighted tubing, and 5 Robust Aire diffuser assemblies.
The Robust-Aire RA6 system includes 2 dual port rocking piston compressors, 2 valved aluminum manifolds, 600 feet of 3/8 inch Sure Sink weighted tubing, and 6 Robust-Aire diffuser assemblies.

Robust-Aire Diffusers
Diffusers are designed to provide a fine air bubble with the least amount of pressure. The base is made of durable plastic and a locking fill plug allows you to fill it with gravel or other weighted substrate. It has a raised design that keeps the diffusers performing at an optimal level above the pond bottom. A durable, bolted, strain relief attachment insures that the weighted tubing will not become
detached during installation or maintenance. A check valve with Viton seals keeps water from entering the tubing when the system is not operating.

Enclosures
Robust-Aire systems 4, 5 & 6 are available with two options for enclosures:

A large base mount cabinet is included as the default method for the system.
•Dimensions are 22” x 17” x 19”H and includes
•120 volt receptacle or a 240 volt junction box.
•Cooling fans provide 110 CFM ventilation per compressor.
•Compressors are mounted in the keyed, lockable cabinet.

No Cabinet (NC): This is desired when you want to install the compressor system in your own structure. Compressors need to be kept out of the weather in a ventilated area. Remote manifold is easily mounted via wood screws.

Weighted tubing 
Available in easy to handle 100 foot coils. RA systems 4-6 include 100 feet of 3/8 tubing for each diffuser. Each coil is boxed and includes our full packet of barbed connectors and adapter fittings, and all-stainless steel tubing clamps. You will be prepared to make any connection necessary with the tubing kit. Additional 3/8 or 5/8 weighted tubing is available when additional length is needed.

Robust-Aire rocking piston compressors
•Provide efficient, continuous-duty operation with minimal maintenance and quiet operation. Units are extremely quiet.
•Sound level is less than: 70 dB without cabinet (Window air conditioner) 65 dB with cabinet and acoustic sound proofing (Normal conversation)
•Safely starts under pressure. Maximum operating depth 40 feet.
•Warranty: One year complete warranty on all parts.

	No cabinet		Post mount cabinet		Large cabinet
	120 volt	240 volt	120 volt	240 volt	120 volt	240 volt
System 1 1 diffuseur assembly 100' 3/8" tubing	RA1-NC	RAH1-NC	RA1-PM	RAH1-PM	RA1	RAH1
System 2 2 diffuseur 200' 3/8" tubing	RA2-NC	RAH2-NC	RA2-PM	RAH2-PM	RA2	RAH2
System 3 3 diffuseur 300' 3/8" tubing	RA3-NC	RAH3-NC	RA3-PM	RAH3-PM	RA3	RAH3
System 4 4 diffuseur 400' 3/8" tubing	RA4-NC	RAH4-NC	N/A		RA4	RAH4
System 5 5 diffuseur 500' 3/8" tubing	RA5-NC	RAH5-NC	N/A		RA5	RAH5
System 6 6 diffuseur 600' 3/8" tubing	RA6-NC	RAH6-NC	N/A		RA6	RAH7