These replacement viton® seals are specifically designed for the faispray16hd professional knapsack sprayer, providing enhanced chemical resistance for demanding applications. Viton® seals offer superior resistance to most acids and solvents, making them ideal for professionals working with aggressive chemicals commonly used in automotive maintenance, professional cleaning operations, and certain agricultural applications. The advanced seal material enables the sprayer to handle more challenging chemicals that would deteriorate standard seals. Where possible, it is advisable to use water based products as these are less damaging to the environment and will help extend the working life of the seals. However, when aggressive chemicals are necessary for the job, these viton® seals provide the chemical compatibility required. This replacement seal pack ensures continued reliable performance of your faispray16hd sprayer, particularly when working with solvents and acids that exceed the capabilities of standard seal materials. Please note that even with enhanced chemical resistance, use of aggressive chemicals will inevitably shorten the working life of these seals compared to use with water based products. Specifications accessory type viton® seals