

🌊 Stay dry, stay ahead — the ultimate float switch for pros who demand reliability!
The Rule Rule-A-Matic Plus Float Switch combines rugged, impact-resistant design with marine-grade wiring to deliver reliable pump control for water levels between 2" and 3/4". Supporting pumps up to 20 amps and featuring a built-in test function, it’s engineered for durability and precision in demanding aquatic environments.







| ASIN | B000O8DA0K |
| Batteries included? | No |
| Best Sellers Rank | 196,684 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) 149 in Boat Bilge Pumps |
| Brand | Rule |
| Color | White |
| Compatible with | No |
| Customer Reviews | 4.6 4.6 out of 5 stars (969) |
| Date First Available | 13 Aug. 2010 |
| Department | Switch |
| Features | Not_Performance_Used |
| Height | 6 inches |
| Included components | Rule 40A Rule-A-Matic Plus Bilge Pump Float Switch, 12, 24 or 32 Volt, Moisture Tight Seals |
| Is discontinued by manufacturer | No |
| Item display length | 6 inches |
| Item display width | 6 inches |
| Item model number | RFA-40A |
| Manufacturer | Rule |
| Material type | Stainless Steel |
| Number of items | 1 |
| Number of pieces | 1 |
| Power source | electricity |
| Product Dimensions | 22.86 x 15.24 x 10.16 cm; 181.44 g |
| Seasons | All-Season |
| Shape | as shown |
| Size | S |
| Sport | Boating |
| Style | Float Switch |
| Usage | SportingGoods |
| Weight | 227 g |
K**E
Replacement required
I had to buy this as a replacement. The old unit would rise on the water level and as the float dropped it would not turn off the pump. If they were to make the float valve easy access then regularly maintenance could have been carried out to clear scale build up on float switch . Easy to fit . Comes with a lengthy power lead
B**P
Boat bulge float
Just as listed
J**K
prompt delivery
This item was a replacement for a previous unit. It arrived promptly in Sardinia and performed exactly as I had expected
D**N
Works as it should
M**E
I bought this to replace an identical one in the bilge of our sailboat. It went into place with no problems. There's a flat spot on the bottom for you to apply your 3M 5200 adhesive, which is how my old one was attached. I cleaned the bilge really well, applied the adhesive, and put something heavy on top of the switch case. When I returned the next day, I hooked up the wires (easy) and it started right up. Unlike my old one, it shut down when the bilge level was drawn down to about a half-inch. Perfect. As boat maintenance goes, this was really simple, and I don't have to worry about a continually-running bilge pump bricking my battery. We'll mark this down as a win.
M**N
Que el precio es bueno y que fue entregada en tiempo.
H**S
Well it works, so far, but this is the third of these switches in 8 years I have had to replace due to the same failure that saw the pump running constantly. I just wish they upped the quality even if it cost more as it is located in a hard to reach position. Best not to make this switch in China perhaps.
M**A
E' scritto già nel titolo. è durato pochissimo
Trustpilot
3 weeks ago
1 day ago