Enpac 5603-YE Filter Spillpads, 0.609375 US gal Capacity, 2′ W x 2′ L x 1.97″ H-(Each)

Has the convenience of a built-in absorbent sock
The replaceable universal absorbents soak up any liquid spilled in the containment area for a quick, hassle free clean up
Replacement absorbents (SDM035) sold separately
Features recyclable, biodegradable, and/or recycled content