Product Description LASCO SB-126 Faucet Seat, 5/8-Inch x 20 Thread x 7/16-Inch Length, Fits Arrowhead Brass Brand Faucets, Brass, 2-Pack. Brass faucet seat. 5/8-Inch x 20 threads x 7/16-Inch in length. Fits Arrowhead Brass Brand Faucets. Original equipment manufacturer number 16. Faucet replacement part. Original equipment manufacturer number 16. From the Manufacturer LASCO SB-126 Faucet Seat, 5/8-Inch x 20 Thread x 7/16-Inch Length, Fits Arrowhead Brass Brand Faucets, Brass, 2-Pack. Brass faucet seat. 5/8-Inch x 20 threads x 7/16-Inch in length. Fits Arrowhead Brass Brand Faucets. Original equipment manufacturer number 16. Faucet replacement part. Original equipment manufacturer number 16.