The Pro Access model includes an access port to enable quicker and easier connection to system piping. It uses a full stainless steel waterway with the piping extended to the stand opening, and the female connection includes wrench flats for extra control when tightening.
| Tank Volume: | 86 Gallons |
|---|---|
| Max Accept. Factor: | 0.54 |
| Connection Size: | 1-1/4" |
| Height: | 47-1/4" |
| Diameter (Inches): | 26" |
| Weight (lbs): | 123 lbs |
| Warranty: | 7 Year Limited |
| Connection Type: | FNPT x FNPT |
| Precharged PSI: | 38 psi |
| Max Pressure (PSI): | 150 |
| Max Temp (F): | 200°F |
| Shell Material: | Steel |
| Diaphragm Material: | Butyl |
| Liner Material: | Virgin Polypropylene |
| Coating: | Blue Enamel |
| Application: | Plumbing |

Please refer to the document below for dimensional information. This tank has a 1-1/4" connection size. http://www.amtrol.com/media/documents/wellxtrol/Pages1-3Submittal_Data_03_10.pdf
The WX-302 just has an elbow on the bottom. The WX-302P has an elbow and stainless steel pipe to the stand, which would allow for a shorter tank tee.