Patented gel with Pipe Guard is the most powerful to penetrate and dissolve clogs. Works fast to clear fully clogged drains with standing water and slow drains. Removes hair, gunk, grease, and soap scum. Safe for all pipes (PVC, plastic, copper, old pipes), septic systems, and garbage disposals. Contains no phosphorus. Container Size (Oz.): 128 Oz. Chemical Form: Gel Commercial / Residential: Commercial / Residential For Septic Use: Septic Safe Set Time (Min.): 7 Type of Issue: Clog Prevention Formula: Yes Number of treatments per container: 8 Compatible Pipe Material: Multi-Purpose Drain Cleaners Type: Bathroom and kitchen