They area designed to fit a standard drainage hole used by most manufacturers. White (RAL9016), Black, Dark Brown, Cream (RAL9001), Tan (RAL1011), Silver Grey (RAL7001), Agate Grey (RAL7038), Anthracite Grey (RAL7016), Slate Grey (RAL7015), Bassalt Grey (RAL7012) Mahogany (RAL8017).
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