Potty Toddy Tabs work instantly to break up waste and eliminate odors.• Biodegradable, non-toxic and non-staining. • Unscented. 1 tab/40 gal. tank.• Formaldehyde free. Made in the USA.• Complete holding tank and portable toilet treatment that stops odors.• One tab treats 50 gallons and has no formaldehyde.• Complete holding tank and portable toilet treatment that stops odors.• One tab treats 50 gallons and has no formaldehyde. 1 tab/40 gal. tank. Formaldehyde free. USA. | Valterra Potty Toddy Tabs - Package . of 6 Made in USA