Design includes marine grade 14 gauge "blocked wire", larger float for increased buoyancy, removable base for easy servicing and a snap switch design capable of handling pumps drawing up to 20 Ampere. A standard bilge pump operates by a control switch that senses water and activates the pump. Rule’s Float Switches offer outstanding performance. We use extra-large float chambers for increased buoyancy and detachable mounting bases that make them easier to install and remove for cleaning and inspection. All models are suitable for pumps that draw up to 20 Ampere, except the Model 35 Rule-A-Matic, which is suitable up to 14 Ampere. Rule also produces the ECO-switch, which operates when rising bilge water levels increase air pressure. All switching gear is located outside of the bilge in a sealed, compact unit.

Rule 37A Attributes

• Compatibility: Rule ® Bilge Pumping System
• Voltage Rating: 12 To 24 Volt
• With Wiring Harness: Yes
• With Fuse Holder: Yes

Rule 37A Features & Benefits

• Non-Mercury SuperSwitch Is Designed For The Toughest Application
• Design Includes Marine Grade 14 Gauge "Blocked Wire", Larger Float For Increased Buoyancy
• Design Capable Of Handling Pumps Drawing Up To 20 Ampere
• Rule’s Float Switches Offer Outstanding Performance
• Limited 5 Year Warranty

Rule 37A Installation Instructions

• rule-a-matic-float-switch-installation-instructions.pdf

Rule 37A Technical Bulletins

• rule-a-matic-float-switch-technical-datasheet.pdf

SuperSwitch™ Float Switch

Now backed by a 5 year warranty, the non-mercury SuperSwitch is designed for the toughest applications. Design includes marine grade 14 gauge blocked wire, larger float for increased buoyancy, removable base for easy servicing and a snap switch design capable of handling pumps drawing up to 20 Amps.

WARNING: This product can expose you to chemicals including STYRENE which is known to the State of California to cause cancer. For more information go to P65Warnings.ca.gov.

A standard bilge drain is operated by a control switch that senses the water and activates the pump. Rule's float switch can provide excellent performance. They use oversized floats...
SKU: NVN-31517
MPN: 37A
UPC: 042237095497