Neptune PZ-61

Neptune Electric Diaphragm Metering PZ-61 Pumps.

Pressure and gpd rating:

• All PZ-61 models are rated to 22.8 gpd (1.0 gph), 115 psi maximum pressure.

Material:

• Models VTCF and VTCE are made with a PVC head.
• Models CL and ARPZ are made with a Acrylic head.
• Models FTCF, FTCE, and and FTCT are made with a Kynar head.
• SS are made with a 316 SS head.

Seal Type:

• The part number above ( ) is the seal type (EPDM/Viton).

What is included?

Each pump (except the SS Model) comes with:

• Foot Valve Strainer
• Air Bleed Valve
• Suction/Discharge Tubing
• Injector Quill with Check Valve

I have a Neptune PZ-61-VFC. I am looking at this page and it is asking if I want the VTCF option, is that different from what I have? The part number was changed from PZ-61-VFC to PZ-61-VTCF but the material is the same and it's practically the same pump.