Undergravel Filters are economical and very effective biological Filters. The extremely large surface area of a gravel bed, provides additional colonization potential compared to hang on
the back style filters while also utilizing the efficiency and reliability of an air power source. Call for quantity discounts
The “Economy Series”
utilize standard style flat filter plates but include features found on the professional series, such as filter plate gravel guard, screened elbow spout w/ carbon cartridges, dual large 1” diameter lift tubes and airstones.
The “Professional Series”
utilize ridged raised filter plates with extended lift tube seats to prevent gravel entry, heavy gauge 1” lift tubes with heavy gauge screened elbow spouts w/ carbon cartridges and air diffusers.