Waterway Plastics Classic/Econo Bath Jet Series.
This section contains ALL of the jet bodies and fittings for "Silicone Ports"

Sales guide :

When choosing the jet body for your bath you should bear in mind that each body in this range is available in 4 orifice sizes (Orifice size information is available in that section) and they all have Silicone Ports.

What are Silicone Ports ?

Silicone ports are small openings in the jet body where the threads start and it uses a channel around the mouth of the jet body to seal the unit. They allow the installer to inject the silicone into the jet body to seal against the bathtub. It’s a cleaner installation when compared to "No Silicone Ports". There are two port openings per jet body in this category. One to insert silicone and one for the discharge of the silicone on the opposite side to gauge when it’s sealed.

Orifice guides (denoted by a code at the end of each part number) :

X7 = 0.275" Fixed Orifice
A7 = 0.275" Adjustable Orifice
A5 = 0.250" Adjustable Orifice
A3 = 0.312 Adjustable Orifice