LinkMejor 10 Pcs Water Leak Detector Replacement Pads, 18mm RO System

Features: This replacement pad works with most standard water filtration system mechanical water shutoff leak detectors. When water comes in contact with the leak detector, our compact and wide base sponge can expand vertically with the pad tray, providing a leak stop for your system, running a system without an expansion pad is never a good idea. Keep some ready in case. Specifications: Material: cotton Color: white Size: about 18mm Package includes: 10 X Replacement Pads Notes: Manual measurement, please allow slight errors on size. The color may exist a slight difference due to different screen displays