Welcome to Best Septic Supply — your trusted source for high-quality septic control panels, float switches, and genuine RJR Controls products. We proudly serve engineers, maintenance providers, and installers across the U.S. with dependable parts and fast, reliable shipping. Our mission is simple: keep your septic systems running smoothly with quality components and expert support you can count on every day.

LPD-B
The LPD-B by RJR Controls is a single pump control panel designed for 120V demand dose systems. It features float-based pump activation, a high-water alarm with a solid red light, and alarm test, mute, and run switches for dependable septic system operation.

ALT-DT-LA
The ALT-DT-LA by RJR Controls is a duplex dosing timer control panel designed for 120V systems. It features an Omron H3CRF8 repeat cycle timer, alternating relay, and a latching high-water alarm for reliable septic operation.

E4L
The E4L by RJR Controls is an aerobic control panel designed to operate a 120V effluent pump and a 120V linear or rotary air compressor. It features a Grasslin FM1STUZ 15-minute pin clock timer, dual high-water alarms (solid red for high water and flashing red for aerator), and includes alarm test, mute, and pump test switches for convenient system management.

JAOCS
The JAOCS by RJR Controls is a control panel designed to operate a 120V shaft aerator continuously. It features a 7 Amp aerator circuit breaker, a 10 Amp alarm circuit breaker, and a current switch to monitor aerator operation. The panel includes a high-water alarm with a solid red light and buzzer, and alarm test and mute switches for convenient system management.

ALTC‑3ATU‑2A
The ALTC‑3ATU‑2A by RJR Controls is a duplex aerobic control panel built for spray aerobic systems, supporting up to two 120 VAC pumps and 3 shaft-style aerators. It features alternating pump operation on demand, aerator pressure-switch monitoring, latching high-water alarms, and includes alarm test/mute and pump test switches, all in a UL‑listed 4X enclosure.