Carvin Laser L192C 7C 19" Top Mount 1 1 2" Valve Sand Filter (94089192) pushpullvalves When both heating and control side When both heating and control side features need to be brought back into alignment A lid in this role is useful because it closes the vessel securely while still allowing access for maintenance This version with a 1 1 2 inch top mount valve is especially useful when a compatible existing filter needs replacement or when the system calls for a sand filter of this size and connection style The 94089192 is a strong replacement choice for compatible pool systems that need renewed sand filtration support and cleaner everyday water management