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See more product details The 3-IN-ONE brand is focused on making it easy for people to solve their maintenance problems—and has been since 1894. And that's why the WD-40 Company officially acquired the 3-IN-ONE Oil business in 1995 and has been innovating ever since to produce products with great delivery systems. Poorly maintained rubber slide-out seals or gaskets can cause deterioration and cracking that allows water, dirt, wind, and even rodents to enter RVs. Contains UV inhibitors which help prevent cracking and fading. Long lasting water resistant formula reduces friction and wear. Extends the life of rubber slid-out and other seals when used regularly. Also works to protect other RV rubber seals including those on windows, doors, compartments and hatches. Great for conditioning rubber seals on RVs, boats, cars, and other vehicles. Safe to use on rubber, metal, vinyl and plastic.







