RV & Marine Antifreeze -50°F, Premium Formula, 1 Gallon (2-Pack) | Ready-to-Use Winterizing Protection for RVs, Boats, Campers, Pool Lines & Seasonal Equipment

Prepare your RV, boat, or seasonal home for freezing temperatures with SPLASH -50°F Premium RV & Marine Antifreeze. Designed for the toughest winter conditions, this ready-to-use formula provides reliable protection down to -50°F, helping prevent costly freeze damage to pipes, tanks, and plumbing systems. Each 2-pack includes two 1-gallon jugs, giving you the volume needed for full winterization of RVs, trailers, boats, pool lines, sprinkler systems, and more. The corrosion-inhibiting formula is safe for plumbing, seals, valves, and fittings, making it a trusted choice for both professional installers and DIY winterizers. Whether you're protecting your camper for winter storage, shutting down a boat for the season, or safeguarding your cottage plumbing, SPLASH delivers dependable cold-weather performance every time.

• Ultra-Low Freeze Protection – Rated to -50°F, this premium RV & marine antifreeze delivers maximum winterization for harsh climates, protecting water systems from extreme cold damage.
• Safe for RV & Marine Plumbing – Formulated for RVs, boats, campers, trailers, cottages, tiny homes, and more. Helps prevent burst pipes, cracked fittings, and costly winter repairs.
• Ready-to-Use Convenience – No mixing or dilution needed. Simply pour directly into water lines, holding tanks, and seasonal systems for hassle-free winterizing.
• Multi-System Protection – Ideal for pool plumbing, sprinkler lines, vacation homes, evaporative coolers, and seasonal equipment. Provides reliable freeze protection and corrosion resistance.
• Value 2-Pack – Includes two 1-gallon jugs of SPLASH -50°F Premium RV/Marine Antifreeze—perfect for full-system winterization or multiple vehicles. Trusted brand for dependable cold-weather protection.