Equipment
Penn-Plax Clear-Free Undergravel Filter 20H/15 gal.
A 2-plate undergravel filter system from Penn-Plax sized for 20H and 15-gallon tanks — draws water through the gravel bed, turning your substrate into biological filter media.
$19.99In stock
In-store purchase only. There is no online checkout on this site. Pick this up at our Erie store, or call us to arrange shipping.
- Brand
- Penn-Plax
- Condition
- new
- Fulfillment
- Local pickup — Erie, PA
Pick this up at the shop, or ask us to ship it. Shipping cost depends on the item, so call (814) 456-9445 and we'll quote it — payment is taken upfront before the order goes out.
What it's for
Underlined topics open the guide that explains how they work.
- biological filtration for freshwater tanksBiological filtrationThe bacteria that turn fish waste into something harmless. The real filter.In How to build an easy freshwater sump — no drilling, no cut glass
- undergravel filtration system
- turning substrate into filter mediaSubstrate & gravelWhat goes on the bottom, and whether it's just a look or feeding your plants.In Your first freshwater aquarium: the complete starter setup
- low-profile tank filtration
Visit the store
660 East 14th Street,
Erie, PA.
Mon–Fri 12–6 · Sat 11–4 · Sun closed. Call ahead on livestock — what's on the floor rotates.