Geo-Flo manufactures and supplies HDPE fittings and adapters for geothermal, water-source, and hydronic distribution piping. Geo-Flo’s HDPE fittings are manufactured in compliance with ASTM D-2683, and produced with PE3408/3608 or 4710 resin for superior slow crack growth resistance. The Geo-Flo brand HDPE socket fusion fittings and adapters are made in the USA. Check our HDPE fittings catalog for the the brand of each fitting we carry. In 2022, we purchased the Viega GeoFusion tooling and began injection molding these fittings in Indiana, USA. Click here for a full list of cross referenced part numbers.
Fitting Types
| PFT = Tee |  | PFL = Elbow |  | PFC = Coupling | 
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| PFTA = Tee-Adapter |  | PFLA = Elbow-Adapter |  | PFA = Adapter | 
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| PFP = Cap |  | PH = Fusion Header |  |
Nomenclature Examples
Geo-Flo’s Part Numbers are based on 1/4″ increments
*** Ex: (1 = 1/4″) , (2 = 1/2″) , (3 = 3/4″) , (4 = 1″) , (5 = 1-1/4″) , (6 = 1-1/2″) , (8 = 2″)
| PN | Description | Style | Inlet | Modifier | Outlet | Modifier | Side Outlet | Modifier | Photo |
|---|---|---|---|---|---|---|---|---|---|
| PFA31F | Polyfusion Adapter 3/4" Fusion X 1/4" Female Pipe Thread | PFA | 3 = 3/4" | 1 = 1/4" | F |  |
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| PFA32F | Polyfusion Adapter 3/4" Fusion X 1/2" Female Pipe Thread | PFA | 3 = 3/4" | 2 = 1/2" | F | Coming Soon | |||
| PFA33M | Polyfusion Adapter 3/4" Fusion X 3/4" Male Pipe Thread | PFA | 3 = 3/4" | 3 = 3/4" | M |  |
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| PFA34HB | Polyfusion Adapter 3/4” Fusion X 1” Hose Barb | PFA | 3 = 3/4" | 4 = 1" | HB |  |
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| PFA34M | Polyfusion Adapter 3/4" Fusion X 1" Male Pipe Thread | PFA | 3 = 3/4" | 4 = 1" | M | Coming Soon | |||
| PFA44HB | Polyfusion Adapter 1” Fusion X 1” Hose Barb | PFA | 4 = 1" | 4 = 1" | HB |  |
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| PFA44M | Polyfusion Adapter 1" Fusion x 1" Male Pipe Thread | PFA | 4 = 1" | 4 = 1" | M |  |
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| PFA53M | Polyfusion Adapter 1-1/4" Fusion x 3/4" Male Pipe Thread | PFA | 5 = 1-1/4" | 3 = 3/4" | M | Coming Soon | |||
| PFA54HB | Polyfusion Adapter 1-1/4” Fusion X 1” Hose Barb | PFA | 5 = 1-1/4" | 4 = 1" | HB |  |
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| PFA54M | Polyfusion Adapter 1-1/4" Fusion X 1" Male Pipe Thread | PFA | 5 = 1-1/4" | 4 = 1" | M |  |
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| PFA54M-CV | Polyfusion Adapter 1-1/4" Fusion X 1" Male Pipe Thread w/ Check Valve | PFA | 5 = 1-1/4" | 4 = 1" | M | CV | Coming Soon | ||
| PFA55M | Polyfusion Adapter 1-1/4" Fusion X 1-1/4" Male Pipe Thread | PFA | 5 = 1-1/4" | 5 = 1-1/4" | M |  |
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| PFA64HB | Polyfusion Adapter 1-1/2” Fusion X 1” Hose Barb | PFA | 6 = 1-1/2" | 4 = 1" | HB | Coming Soon | |||
| PFA64M | Polyfusion Adapter 1-1/2" Fusion X 1" Male Pipe Thread | PFA | 6 = 1-1/2" | 4 = 1" | M | Coming Soon | |||
| PFA64WF | Polyfusion Adapter 1-1/2" Fusion X 1" Swivel Female | PFA | 6 = 1-1/2" | 4 = 1" | WF | Coming Soon | |||
| PFA66M | Polyfusion Adapter 1-1/2" Fusion X 1-1/2" Male Pipe Thread | PFA | 6 = 1-1/2" | 6 = 1-1/2" | M |  |
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| PFA88F | Polyfusion Adapter 2" Fusion X 2" Female Pipe Thread | PFA | 8 = 2" | 8 = 2" | F |  |
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| PFA88M | Polyfusion Adapter 2" Fusion X 2" Male Pipe Thread | PFA | 8 = 2" | 8 = 2" | M |  |
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| PFC33 | Polyfusion Coupling 3/4" X 3/4" | PFC | 3 = 3/4" | 3 = 3/4" |  |
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| PFC43 | Polyfusion Coupling 1" X 3/4" | PFC | 4 = 1" | 3 = 3/4" |  |
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| PFC44 | Polyfusion Coupling 1" X 1" | PFC | 4 = 1" | 4 = 1" | |
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| PFC53 | Polyfusion Coupling 1-1/4" X 3/4" | PFC | 5 = 1-1/4" | 3 = 3/4" |  |
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| PFC54 | Polyfusion Coupling 1-1/4" X 1" | PFC | 5 = 1-1/4" | 4 = 1" |  |
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| PFC55 | Polyfusion Coupling 1-1/4" X 1-1/4" | PFC | 5 = 1-1/4" | 5 = 1-1/4" |  |
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| PFC64 | Polyfusion Coupling 1-1/2" X 1" | PFC | 6 = 1-1/2" | 4 = 1" |  |
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| PFC65 | Polyfusion Coupling 1-1/2" X 1-1/4" | PFC | 6 = 1-1/2" | 5 = 1-1/4" |  |
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| PFC66 | Polyfusion Coupling 1-1/2" X 1-1/2" | PFC | 6 = 1-1/2" | 6 = 1-1/2" |  |
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| PFC84 | Polyfusion Coupling 2" X 1" | PFC | 8 = 2" | 4 = 1" |  |
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| PFC85 | Polyfusion Coupling 2" X 1-1/4" | PFC | 8 = 2" | 5 = 1-1/4" |  |
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| PFC86 | Polyfusion Coupling 2" X 1-1/2" | PFC | 8 = 2" | 6 = 1-1/2" |  |
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| PFC88 | Polyfusion Coupling 2" X 2" | PFC | 8 = 2" | 8 = 2" |  |
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| PFL33 | Polyfusion Elbow 3/4" x 3/4" | PFL | 3 = 3/4" | 3 = 3/4" |  |
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| PFL33S | Polyfusion Elbow 3/4" x 3/4" Street | PFL | 3 = 3/4" | 3 = 3/4" | S |  |
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| PFL43 | Polyfusion Elbow 1" x 3/4" | PFL | 4 = 1" | 3 = 3/4" |  |
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| PFL44 | Polyfusion Elbow 1" x 1" | PFL | 4 = 1" | 4 = 1" | |
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| PFL44-45 | Polyfusion Elbow 1" X 1" 45° Degree | PFL | 4 = 1" | 4 = 1" | 45 | Coming Soon | |||
| PFL44S | Polyfusion Elbow 1" x 1" Street | PFL | 4 = 1" | 4 = 1" | S |  |
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| PFL53 | Polyfusion Elbow 1-1/4" x 3/4" | PFL | 5 = 1-1/4" | 3 = 3/4" |  |
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| PFL54 | Polyfusion Elbow 1-1/4" x 1" | PFL | 5 = 1-1/4" | 4 = 1" | Coming Soon | ||||
| PFL55 | Polyfusion Elbow 1-1/4" x 1-1/4" | PFL | 5 = 1-1/4" | 5 = 1-1/4" |  |
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| PFL55-45 | Polyfusion Elbow 1-1/4" x 1-1/4" 45° Degree | PFL | 5 = 1-1/4" | 5 = 1-1/4" | 45 |  |
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| PFL55S | Polyfusion Elbow 1-1/4" x 1-1/4" Street | PFL | 5 = 1-1/4" | 5 = 1-1/4" | S |  |
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| PFL66 | Polyfusion Elbow 1-1/2" x 1-1/2" | PFL | 6 = 1-1/2" | 6 = 1-1/2" |  |
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| PFL66-45 | Polyfusion Elbow 1-1/2" x 1-1/2" 45° Degree | PFL | 6 = 1-1/2" | 6 = 1-1/2" | 45 |  |
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| PFL88 | Polyfusion Elbow 2" x 2" | PFL | 8 = 2" | 8 = 2" |  |
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| PFLA33F | Polyfusion Elbow Adapter 3/4" Fusion x 3/4" Female Pipe Thread | PFLA | 3 = 3/4" | 3 = 3/4" | F | Coming Soon | |||
| PFLA33M | Polyfusion Elbow Adapter 3/4" Fusion x 3/4" Male Pipe Thread | PFLA | 3 = 3/4" | 3 = 3/4" | M | |
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| PFLA34M | Polyfusion Elbow Adapter 3/4" Fusion x 1" Male Pipe Thread | PFLA | 3 = 3/4" | 4 = 1" | M | Coming Soon | |||
| PFP3 | Polyfusion Cap 3/4" | PFP | 3 = 3/4" |  |
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| PFP4 | Polyfusion Cap 1" | PFP | 4 = 1" |  |
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| PFP5 | Polyfusion Cap 1-1/4" | PFP | 5 = 1-1/4" |  |
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| PFP6 | Polyfusion Cap 1-1/2" | PFP | 6 = 1-1/2" |  |
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| PFP8 | Polyfusion Cap 2" | PFP | 8 = 2" | |
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| PFT888 | Polyfusion Tee 2" x 2" x 2" | PFT | 8 = 2" | 8 = 2" | 8 = 2" |  |
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| PFT666 | Polyfusion Tee 1-1/2" x 1-1/2" x 1-1/2" | PFT | 6 = 1-1/2" | 6 = 1-1/2" | 6 = 1-1/2" |  |
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| PFT885 | Polyfusion Tee 2" x 2" x 1-1/4" | PFT | 8 = 2" | 8 = 2" | 5 = 1-1/4" |  |
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| PFT855 | Polyfusion Tee 2" x 1-1/4" x 1-1/4" | PFT | 8 = 2" | 5 = 1-1/4" | 5 = 1-1/4" |  |
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| PFT555 | Polyfusion Tee 1-1/4" x 1-1/4" x 1-1/4" | PFT | 5 = 1-1/4" | 5 = 1-1/4" | 5 = 1-1/4" |  |
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| PFT884 | Polyfusion Tee 2" x 2" x 1" | PFT | 8 = 2" | 8 = 2" | 4 = 1" |  |
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| PFT333 | Polyfusion Tee 3/4"x 3/4" x 3/4" | PFT | 3 = 3/4" | 3 = 3/4" | 3 = 3/4" |  |
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| PFT444 | Polyfusion Tee 1" x 1" x 1" | PFT | 4 = 1" | 4 = 1" | 4 = 1" | |
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| PFT533 | Polyfusion Tee 1-1/4" x 3/4" x 3/4" | PFT | 5 = 1-1/4" | 3 = 3/4" | 3 = 3/4" |  |
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| PFT544 | Polyfusion Tee 1-1/4" x 1" x 1" | PFT | 5 = 1-1/4" | 4 = 1" | 4 = 1" |  |
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| PFT553 | Polyfusion Tee 1-1/4" x 1-1/4" x 3/4" | PFT | 5 = 1-1/4" | 5 = 1-1/4" | 3 = 3/4" |  |
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| PFT554 | Polyfusion Tee 1-1/4" x 1-1/4" x 1" | PFT | 5 = 1-1/4" | 5 = 1-1/4" | 4 = 1" |  |
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| PFT664 | Polyfusion Tee 1-1/2" x 1-1/2" x 1" | PFT | 6 = 1-1/2" | 6 = 1-1/2" | 4 = 1" | Coming Soon | |||
| PFT853 | Polyfusion Tee 2" X 1-1/4" X 3/4" | PFT | 8 = 2" | 5 = 1-1/4" | 3 = 3/4" | Coming Soon | |||
| PFT854 | Polyfusion Tee 2" x 1-1/4" x 1" | PFT | 8 = 2" | 5 = 1-1/4" | 4 = 1" |  |
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| PFT864 | Polyfusion Tee 2" x 1-1/2" x 1" | PFT | 8 = 2" | 6 = 1-1/2" | 4 = 1" | Coming Soon | |||
| PFT883 | Polyfusion Tee 2" x 2" x 3/4" | PFT | 8 = 2" | 8 = 2" | 3 = 3/4" |  |
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| PFTA332F | Polyfusion Tee-Adapter 3/4" Fusion x 3/4" Fusion x 1/2" Female Pipe Thread | PFTA | 3 = 3/4" | 3 = 3/4" | 2 = 1/2" | F |  |
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| PFTA442F | Polyfusion Tee-Adapter 1" Fusion x 1" Fusion x 1/2" Female Pipe Thread | PFTA | 4 = 1" | 4 = 1" | 2 = 1/2" | F | Coming Soon | ||
| PFTA4M32F | Polyfusion Tee-Adapter 1" Male Pipe Thread x 3/4" Fusion x 1/2" Female Pipe Thread | PFTA | 4 = 1" | M | 3 = 3/4" | 2 = 1/2" | F | |
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| PFTA4MS2F4 | Polyfusion Tee-Adapter 1" Male Straight Thread x 1/2" Female Pipe Thread x 1" Fusion | PFTA | 4 = 1" | MS | 2 = 1/2" | F | 4 = 1" | Coming Soon | |
| PFTA4MS32F | Polyfusion Tee-Adapter 1" Male Straight Thread x 3/4" Fusion x 1/2" Female Pipe Thread | PFTA | 4 = 1" | MS | 3 = 3/4" | 2 = 1/2" | F | Coming Soon | |
| PFTA4MS42F | Polyfusion Tee-Adapter 1" Male Straight Thread x 1" Fusion x 1/2" Female Pipe Thread | PFTA | 4 = 1" | MS | 4 = 1" | 2 = 1/2" | F | Coming Soon | |
| PFTA551F | Polyfusion Tee-Adapter 1-1/4" Fusion x 1-1/4" Fusion x 1/4" Female Pipe Thread | PFTA | 5 = 1-1/4" | 5 = 1-1/4" | 1 = 1/4" | F |  |
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| PFTA854M | Polyfusion Tee-Adapter 2" Fusion x 1-1/4" Fusion x 1" Male Pipe Thread | PFTA | 8 = 2" | 5 = 1-1/4" | 4 = 1" | M |  |
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| PFTA881F | Polyfusion Tee-Adapter 2" Fusion x 2" Fusion x 1/4" Female Pipe Thread | PFTA | 8 = 2" | 8 = 2" | 1 = 1/4" | F | Coming Soon | ||
| PFTA884M | Polyfusion Tee-Adapter 2" Fusion x 2" Fusion x 1" Male Pipe Thread | PFTA | 8 = 2" | 8 = 2" | 4 = 1" | M |  |