(2) Orphek atlantic compacts gen 2 for sale; Orphek gateway will go with the pair. Had these on my 90 gallon. 3 years old. They work fine. $175 each or $300 for both with gateway. If someone only wants 1 I will sell the gateway for $25. Prefer to sell as a pair. Pick up in Tewksbury or can meet on saturdays in Salem NH pm is best