Measure Your Old Hot Tub Filter
Use Menu to Narrow Your Search:
- Choose Type: Drop-In or Screw-In.
- Got Part #? [Search this category] No match? Go to 3.
- Pick: Spa Brand if known. No match? CLEAR Brand (x). Go to 4.
- Select: Diameter & Length ranges to narrow selection.
Follow measuring tips below:
Confirm Spa Filter Dimensions
- Round all figures to nearest ⅛”.
- Compare to search results.
- View photos to confirm match.
- Variances ±⅛” are normally OK.
See how to measure filter below:
How-to Measure Diameter & Length
Measure old filter’s end-cap Diameter (edge-to-edge width) & Length (cap-to-cap height). Exclude handles/fittings.
How-to Measure Inner Opening
If filter has flush end-cap opening(s), measure Inside Diameter.
How-to Measure External Fitting
If filter has a protruding fitting, measure Outside Diameter. Note style: Coarse Thread, Fine Thread, or Male Slip.
