Active Aqua 20 Gallon Reservoir Cover | White, 31.5 x 24.5 in

Why a 20 Gallon Reservoir Cover Earns Its Keep First Small tanks go green fastest. Twenty gallons turns over quickly, warms quickly and usually sits closer to the lights than a big one, which is everything algae wants. The cover measures 31.5 x 24.5 x 1.25 in in white ABS and seats inside the rim of the matching premium reservoir. It also cuts evaporation, which moves EC on a tank this small in a day. Fitting a 20 Gallon Tank Cover Under a Bench Profile is the reason this one gets specified. At 1.25 in the panel adds almost nothing to overall height. A 20 gallon tank cover this flat still clears under a flood table or a bench where a domed lid would not. The panel is slightly convex and ribbed. Ribbing stops it flexing into the solution, and the convex face sheds whatever lands on it. Because it seats inside the rim rather than over it, that runoff goes back into the tank instead of down the outside. There is an access port hole for topping off or dropping a probe without lifting the whole panel. The port hole cover is a separate part. Multiple drill access points are marked around it for a pump cord, a float valve or meter leads. The sheet gets opened where it was meant to be. The reservoir bottom is sold separately. Larger covers run 40, 70 and 115 gallon on the same pattern. Key Features 31.5 x 24.5 x 1.25 in: Matches the Active Aqua 20 gallon premium white reservoir, which is sold separately. 1.25 in profile: Low enough to keep the tank under a flood table or bench where a domed lid will not. Light out, algae out: A small tank warms and turns over fast, so it greens up before a big one does. Convex and ribbed: Stops the panel flexing into solution and sheds anything set on top of it. Access port hole: Top off or read level without lifting the lid. Port hole cover is a separate part. Multiple drill access points: Marked for pump cords, float valves and meter leads rather than guesswork. Technical Specifications Specification Value Size 20 gallon Dimensions 31.5 in x 24.5 in x 1.25 in Colour White Material High impact ABS, UV resistant Panel Shape Slightly convex, ribbed Seating Inside the reservoir rim Port Hole Yes; port hole cover sold separately Drill Access Points Multiple, for cords, valves and meters Reservoir Sold separately Part Number HGRES20PWC Other Sizes 40, 70 and 115 gallon covers