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Pentair (Purex-Triton) SMBW4000 Series DE Filter
Stainless Steel DE Filter
The SMBW 4000 Series™ Filters remove the tiniest of contaminants, so your water truly sparkles. In addition to exceptional filtration, they feature sheet molded fiberglass tanks and Noryl® rotary backwash valves for long life, dependable performance and easy maintenance. No need to buy a separate backwash valve.
Description Model # Sq. Ft. GPM* 8 Hour 10 Hour 12 Hour Add To Cart
SMBW4000 Filter SMBW4036 35 70 33600 42000 50400 $679.99
SMBW4000 Filter SMBW4048 47 94 45120 56400 67680 $729.99
SMBW4000 Filter SMBW4060 58 116 55680 69600 83520 $799.99
*Flow rates based on 2½ gallons per minute per square foot
**Not recommended for flow rates to exceeed 150 gallons per minute
Features
Maximum Operating Pressure 50 psi
Corrosion-resistant 20 in. diameter fiberglass filter tank for strength and durability
Unique Spiro-Mite grid design provides high efficiency filtration and longer filter cycles
Exclusive clamp ring design is proven to be safe, strong and reliable. It allows for quick and easy access to internal components
2 in. plumbing connections provide maximum flow

Filtering with diatomaceous earth (D.E.) removes particles so small they are individually undetected by the human eye, but combine to decrease water clarity. But 4000 Series™ filters remove the tiniest of contaminants, so your water truly sparkles. In addition to exceptional filtration, Pentair SMBW 4000 Series D.E. filters feature sheet molded fiberglass tanks and Noryl® rotary backwash valves for long life, dependable performance and easy maintenance.

Model
Filter
Vertical
Filter
DE Required
Flow Rate
Turnover Capacity-Res. (Gallons)
Number
Area Sq. Ft.
Clearance*
Diameter
(Lbs.)
(GPM) **
8 hrs.
10 hrs.
12 hrs.
SMBW4036
35
46"
20"
3.6
70
33600
42000
50400
SMBW4048
47
52"
20"
4.8
94
45120
56400
67680
SMBW4060
58
58"
20"
6.0
116
55680
69600
83520
* Required clearance to remove filter elements
** Maximum flow rate

SMBW 4000 Series™ D.E. filters provide optimum filtration efficiency, easy maintenance, and longer runs between cleanings. Their extraordinary dirt-holding capacity and easy cleanability make them the perfect choice for every pool.

  • Durable backwash valve is unaffected by heat and cold, ensuring flawless operation under all conditions.
  • Thermoplastic backwash rotor seal is specially engineered to prevent dirt from entering the rotor chamber for smoother, trouble-free operation.
  • Individually-removable grids for easy cleaning.
  • One-year limited warranty. See warranty for details.