Poolmarket have tested plenty of spa cover cleaners but none were nearly as good as 303.
Developed from the aerospace industry this does not contain any silicone oils that leave the vinyl surface greasy to attract dirt. 303 bonds into vinyl surfaces to block the sun's UV rays and guard against cracking and fading. 303 is also great for other products including rubber, fibreglass, tyres, plastic, leather and dash-boards
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