This filter is 9 3/4" Tall x 4 5/8" Wide and is closed on the top and has a 1 1/2" mpt thin threaded nipple that measures about 1 13/16" across the threads. This filter fits some of the Jacuzzi Whirlpool hot tubs that are found under the names Jacuzzi Whirlpool, Gatsby, Blue Ridge, Imperial, White Springs and More It also fits some LA Spas and more see the list below.
| Diameter | 4-5/8" |
| Length | 9-3/4" |
| Top Style | Handle |
| Bottom Style | Male Pipe Thread (mpt) |
| Bottom Physical Dimension | 1-7/8" od |
| Application | Advanced/LA Spas, After Hours Spas (Hydro), American Dream (CTA), Blue Ridge Spas, CTA Spas, Dream Maker Spas, Gatsby Spas, Heartland Spas, Hydro Spa, Hydro/After Hours Spas, Icon Health & Spas, Imperial Spas, LA Spas, Mountain Meadows, Mountain Mist, Mountain Springs Spa, Mountain Stream, Nemco, Saratoga Spas, Sunrise Spas (Canada), White Springs Spas |
| Model | Echo Series, Polo |
| Square Footage | 25 sq ft |
| Filbur Number | FC-0131 |
| Unicel Number | 4CH-24 |
| Pleatco Number | PGS25P4, PSG40P4 |
| OEM Number | 20254-238 |
