Model: GRL-6.5”
Fits the following woofers: CL-6 , HD-6, HD-M6,
ES-6, ES-06

Model: GRL-5.25”
Fits the following woofers: HD-5, ES-5

Model: GRL-EU5.25”
Fits the following woofers: CL-5EX, EU-5, CL-E5,
CL-5

Model: GRL-4”
Fits the following woofers: CL-4 , CL-4EX, HD-4,
ES-4, ES-04

Model: GRL-3”
Fits the following woofers: HD-3, ES-03