By Pentair Pool Products
Part # 6291-040
Manufacturer Code 460749
Alternate Part #'s 460749, 47-102-1409, PEN460749
Pentair manual for MasterTemp pool heater indicates that model 250 coil requires 8 O-ring seals. This would suggest that the coil has 4 tubes. However, some other sources state that the coil of the 350 model has 6 tubes. Which one is correct and what is the size (inside diameter and length) of the tubes?
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47-102-1412 has 12 orings in the kit 400 deries has 6 tubes 300 series has 5 tubes 200 series has 3 tubes Dimensions on the oring are Part Type O-Ring Cross Section 1/8" Inside Diameter 3/4"id Hence the inside diameter is just less than that
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