The Baystate Pool 79204603 Gasket Set is intended for use with tiny pool niches and provides a watertight seal. This gasket set is constructed of high-quality rubber that resists wear and environmental influences. With dimensions of 8" x 8" x 1", it fits snuggly into narrow gaps, avoiding leaks and protecting the pool's piping system. The gasket compresses between two surfaces to form... https://www.usapoolshop.com/79204603-baystate-pool-gasket-set-small-niche