Weidebach® 44 pieces biodegradable toilet bags, 35.2 oz compost toilet bags,

100 % WATERPROOF: Don't worry about unpleasant liquids leaking out. The WEIDEBACH toilet bags for portaloo are 100 % waterproof and ensure that no leaks occur. FOR ALL CURRENT CAMPING TOILETS: No matter which camping toilet you use, the WEIDEBACH toilet bags are designed for all common camping toilets and hold 35.2 oz.

eBay