WALEX PPRV2LAV RV Trailer Camper Sanitation Porta-Pak Deodorizer Lavender 2/Pack Waste Holding Tank Treatment; Porta-Pak (R); Biological Treatment Used To Control Odor/ Break Down Waste And Liquefy Tissue; Without Formaldehyde; With Deodorant; Lavender Breeze; Lubricates Valves And Cleans Sensor; Treats Up To 50 Gallon Holding Tank; 32 Gram Drop-In Individual Dose Pouches; Bag Of 2 Treatment Formaldehyde-Free. Biodegradable. Convenient Zipper Bag For Easy Storage Controls Odor, Breaks Down Waste And Paper, Lubricates Valves And Cleans Sensors Powered By WAVE 2 Technology For Long-Term Odor Control. Quick Dispersion In Holding Tank No Skin Contact When Handling. Long Shelf Life