The Aladdin 13501 R is a compatible replacement for the following pool filter cartridges:
The Aladdin 13501 - Comp. Pool and Spa Water Filter is a pleated pool filter with 35 sq. ft. of media filtration fabric. This compatible Aladdin pool filter measures 9 1/4" in length and 4 15/16" in diameter, and features open top and bottom holes that measure 2 1/8". This 35 square foot filter purifies swimming pool and spa water, and improves clarity.