Test Strips View cart “303 Aerospace Protectant Spray 32oz” has been added to your cart. $14.99 Add to cart Add to Wishlist Category: Spa Chemicals Tags: hot tub test strips, hot tub testing strips, robarb test strips, spa test strips Description Description Test Spa water for PH, Alkalinity, Bromine and Chlorine levels. 50 Test Strips per package Related products Spa 56 – Chlorinating Granules $32.99 – $75.99 Select options 303 Aerospace Protectant Spray 32oz $32.95 Add to cart Spa Up / pH Up 2 lbs $14.99 Add to cart Metal Gon & Defender 2 Pack 16oz. $29.99 Add to cart