Type S Slide on
Sentinel type
The Sentinel Type Anodes slide onto a steel rod and then screw into a brass plug.
The Sentinel Type Anodes slide onto a steel rod and then screw into a brass plug.
Brass Plug Part Number | NPT Size | Internal Thread | Use with Element | Part Number | Plug NPT Size | Inside Diameter | Outside Diameter |
SP-250 | 1/4" | 10 24 | S-438 | S-438 | 1/4" OR 3/8" | .1875" | .4375" |
SP-375 | 3/8" | 10 24 | S-438 | S-500 | 1/2" | .1875" | .500" |
SP-500 | 1/2" | 10 24 | S-500 | S-813 | 3/4" | .1875" | .8125" |
SP-750 | 3/4" | 10 24 | S-813 | S-1000 | 1" | .1875" | 1.000" |
SP-1000 | 1" | 10 24 | S-1000 | S-1500 | 1-1/2" | .375" | 1.500" |
Stainless steel rods for sentinel anode | ||
Part Number | Rod Size | Use With |
SR-3 | 3/16" x 3" | S-438 - S-500 |
SR-6 | 3/16" x 6" | S-813 - S-1000 |
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SP-500 Sentinel Brass Plug 1/2" NPT
Rotometals.com
$10.99SP-500 1/2" NPT brass plug for sentinel type anode.$10.99 -
SP-375 Sentinel Brass Plug 3/8" NPT
Rotometals.com
$9.99SP-375 3/8" brass plug for sentinel type anode.$9.99 -
SP-250 Sentinel Brass Plug 1/4" NPT
Rotometals.com
$9.99SP-250 1/4" brass plug for sentinel type anode.$9.99