Overview Reviews Product Description Specially formulated to work within a broad temperature range, Sure-chek® leak detector can be used on CSST systems in many climates. It doesn't contain chlorides, so it won't damage metal pipe. Simply spray it on gas line connections and any leaks will be seen with sure-chek's highly visible fluorescent bubbles. Markal - TEMPIL - LA-CO Catalog Product Videos Custom Field Product Reviews Write a Review Write a Review × Markal Sure-Chek® Leak Detector Spray 1pt Bottle 32850 Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Review Subject * Comments *