Intex OEM 29012E spa filter (Type S2)

Intex PureSpa Type S2 (newer PureSpa sets with the cartridge housed in the control unit)

Intex files this cartridge as Type S2 cartridge (Intex 29012E), in the Intex PureSpa Type S2 (newer PureSpa sets with the cartridge housed in the control unit) group. Numbers on the row: OEM 29012E, 13435. 3-3/8" across, 5-1/8" long, no square-foot figure.

What the sources add about 29012E: Intex sells the Type S2 cartridge as 29012E (twin pack) and as single replacement part 13435. Intex gives the size as 3.375" x 5.125" and says the S2 is only for PureSpa models with the cartridge built into the control unit. Intex Italia describes it as having 65% more filter surface than the S1 and fitting only the newer models. A Target listing for 29012E prints 3.5" x 6.25" per filter, which does not match Intex's figure; the size shown here is Intex's. Note the suffix: Intex lists 28425E, 28427E, 28439E and 28441E under the S1 cartridge, but the EG/EH versions of those sets under S2.

Model list attached to Type S2 cartridge (Intex 29012E): Intex PureSpa 28425EG, no year range printed, listed by Intex compatible-item list (Olive Green Round Bubble, 4-person); Intex PureSpa 28425EH, no year range printed, listed by Intex compatible-item list (Sahara Tan Round Bubble, 4-person); Intex PureSpa 28427EG, no year range printed, listed by Intex compatible-item list (Olive Green Round Bubble, 6-person); Intex PureSpa 28427EH, no year range printed, listed by Intex compatible-item list (Sahara Tan Round Bubble, 6-person); Intex PureSpa 28439EH, no year range printed, listed by Intex compatible-item list (Greywood Deluxe Round Bubble, 4-person); Intex PureSpa 28441EH, no year range printed, listed by Intex compatible-item list (Greywood Deluxe Round Bubble, 6-person); Intex PureSpa 28449EH, no year range printed, listed by Intex compatible-item list (Greystone Deluxe Square Bubble, 4-person).

Before ordering 29012E, compare it with C-4317 differs by Unicel C-4317, Pleatco PIN4PAIR, 4-1/4" diameter, 2-15/16" long, top 2-1/16" / open, bottom 2-1/16" / open, 4 sq ft, OEM 29001E, note says Intex sells this cartridge as Type S1: 29001E (twin pack), 29011E (six-pack) and single replacement part 11692. Unicel prints OEM 29001 and 11692; Pleatco prints 29001E for PIN4PAIR (a two-cartridge set). The end-cap openings differ between sources: Unicel gives 2-1/16" top and bottom, Pleatco 1-5/8". Body size (4-1/4" x 2-15/16") agrees. The model list is Intex's own compatible-item list for part 11692 (Intex names five of them as 2019 sets); the years shown are the model-year folders Intex's replacement-parts archive files part 11692 under. A Home Depot listing for 29001E also names 28413E, 28423E and 28443E, which are not on Intex's list. The EG/EH versions of 28425, 28427, 28439 and 28441 take the newer Type S2 cartridge instead..

Unicel and Pleatco and Filbur do not have a number on this row. Search 29012E or the Intex part you pulled out of the spa.

Left blank on purpose: no Unicel, Pleatco or Filbur equivalent; no sq ft rating or end-cap sizes; a Target listing prints a different size (3.5" x 6.25"); no model-year fitment.

Source locations for this Intex row: Intex (manufacturer product page) on 29012E (Filter Cartridge S2 Twin Pack, SKU 29012E: 3.375" x 5.125"; “Only for PureSpa models with control unit cartridge integration”). Intex (manufacturer replacement-part page) on 29012E (13435, Spa Cartridge (S2): Compatible Item List 28425EG, 28425EH, 28427EG, 28427EH, 28439EH, 28441EH, 28449EH). Intex Italia (manufacturer distributor page) on 29012E (S2 cartridge: 65% more filter surface than S1; compatible only with new models with the cartridge housed in the motor unit). Target listing for Intex 29012E (retailer) on 29012E (Specifications: each filter 3.5 in x 6.25 in (differs from Intex's 3.375" x 5.125")).

Hot tubs listed for this cartridge

The rest of the Intex model list is the Intex filter by model and year lookup.

Check the cartridge you removed

Measure diameter, length, and both ends, then compare them with the figures above. The steps are in the measuring guide. Why the bottom decides whether it seals: open-end vs threaded filters. Power, the retainer, and not running the spa empty: how to install a cartridge. Brand notes: Intex and Bestway filters. Number formats: how Filbur, Unicel and Pleatco numbers compare.

Other Intex cartridges

• C-4317 cartridge (OEM 29001E), 4-1/4" (108 mm) × 2-15/16" (75 mm)

All 2 Intex spa filters

Every number on this row, on one screen: cross-reference lookup. Published clean and replace intervals for this cartridge, and a buy link for the numbers above: replacement schedule and reorder. The interval comparison by brand: calculator.

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Sources

• Intex (manufacturer product page): Filter Cartridge S2 Twin Pack, SKU 29012E: 3.375" x 5.125"; “Only for PureSpa models with control unit cartridge integration” (web page)
• Intex (manufacturer replacement-part page): 13435, Spa Cartridge (S2): Compatible Item List 28425EG, 28425EH, 28427EG, 28427EH, 28439EH, 28441EH, 28449EH (web page)
• Intex Italia (manufacturer distributor page): S2 cartridge: 65% more filter surface than S1; compatible only with new models with the cartridge housed in the motor unit (web page)
• Target listing for Intex 29012E (retailer): Specifications: each filter 3.5 in x 6.25 in (differs from Intex's 3.375" x 5.125") (web page)

Not in sources: no Unicel, Pleatco or Filbur equivalent; no sq ft rating or end-cap sizes; a Target listing prints a different size (3.5" x 6.25"); no model-year fitment.