![PMA-R1 (Serial number starting with 24 or less Twilight [Except TS120/240], Legend, Legacy, Therapool Outer Locking Filter)](http://store.eastcoastspas.com/cdn/shop/files/R1filter_d73a7a3d-3dff-4c50-b9c8-ad73efec181d_{width}x.jpg?v=1702493935)
![PMA-R1 (Serial number starting with 24 or less Twilight [Except TS120/240], Legend, Legacy, Therapool Outer Locking Filter)](http://store.eastcoastspas.com/cdn/shop/files/R1filter_d73a7a3d-3dff-4c50-b9c8-ad73efec181d_580x.jpg?v=1702493935)
![PMA-R1 (Serial number starting with 24 or less Twilight [Except TS120/240], Legend, Legacy, Therapool Outer Locking Filter)](http://store.eastcoastspas.com/cdn/shop/files/R1bottom_{width}x.jpg?v=1702493959)
![PMA-R1 (Serial number starting with 24 or less Twilight [Except TS120/240], Legend, Legacy, Therapool Outer Locking Filter)](http://store.eastcoastspas.com/cdn/shop/files/R1filter_d73a7a3d-3dff-4c50-b9c8-ad73efec181d_1024x1024@2x.jpg?v=1702493935)
![PMA-R1 (Serial number starting with 24 or less Twilight [Except TS120/240], Legend, Legacy, Therapool Outer Locking Filter)](http://store.eastcoastspas.com/cdn/shop/files/R1bottom_1024x1024@2x.jpg?v=1702493959)
PMA-R1 (Serial number starting with 24 or less Twilight [Except TS120/240], Legend, Legacy, Therapool Outer Locking Filter)
For serial numbers starting with 24 or lower
Outer Locking Filter for the Twilight Series, Legend, Legacy and Therapool tubs. Excludes the Twilight Series 120 and 240.
The Outer Locking Filter is to be used only with the EcoPur Charge which is sold separately.