DefendAL® Marine & RV Antifreeze -50F is an innovative propylene glycol-based product line with a bio-degradable formula. The PG based formulation provides burst protection in boats, RV’s, trailers, swimming pools, and cabins and serves as a Cool & Safe way to protect your plumbing systems.

• Propylene glycol-based fluids
• Environmentally-friendly formulations
• Protects copper, PVC, iron or porcelain plumbing fittings, and stainless steel fixtures
• Safer for children, pets and wildlife