Waste Holding Tank Treatment; Pure Power; Green; Biological Treatment Used To Break Down Waste and Tissue; Without Formaldehyde; Wintergreen Fragrance; Without Lubricant; Treats 40 Gallon Black or Gray Water Holding Tank; Use 2 Ounces Per 40 Gallons; 16 O
Access Door; 5-7/8 Inch Width x 4-3/4 Inch Height Cutout; 7-5/8 Inch Width x 6-1/2 Inch Height Overall; Use To Access Sewer Hose Storage Compartment In RV; ABS Plastic; Lockable; Black; For Use With Thin Wall PVC Drain Pipe; With Key Lock/ Optional Thumb