With the new vents the spacer ring was not required. The spacer ring was made to fill in the gap between the hatch and the trim ring. It was not used to keep water out or any other reason than to fill the gap. What most people found out was that if you flip the trim ring upside down and slide it up with the flat part towards the hatch the spacer ring was not needed. Due to lack of sales and solution of flipping the trim ring. The spacer ring has been discontinued.
All of the 5″ products were discontinued as well as the 3” and 4” units with the threaded bronze fittings.
No. We do not sell the snap-in cowl vent without the deck ring. There would not be a significant difference in cost even if we did.
It depends on what diameter of which part of the unit you are measuring.
The inside diameter of the cylindrical chambers where the fan blades rotate are 3 inches and 4 inches. Since there are so many variables in the measurements that are so close in size, it is generalized to the two categories for ease of reference.
In other words, anything from 3” to 3 15/16” is categorized as a 3 inch product. Anything from 4” to 4 15/16” is categorized as a 4 inch product.
The Day & Night Plus is the new design which does not snap in to a deck plate like the original Day & Night 2000 did.
They are a fixed mount unit which fastens to the mounting surface without the use of a flanged ring used by the previous version. If replacing the Day & Night 2000 with the Plus, then the white deck ring for the original vent must be removed in order to install the “Plus” model.
They are taking the place of the snap-in vents which have been discontinued. The Day and night Plus will fit in the same cut out.
I am sorry to say we have supported the replacment of these covers for 5 years now and have finally run out of stock on the covers.