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Munro LP150B Self-Priming Centrifugal Pump

Munro LP150B Self-Priming Centrifugal Pump

Last price we saw

$1,233.70at IrrigationKing, last seen Nov 2

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Our take on the Munro LP150B Self-Priming Centrifugal Pump

The Munro LP150B is a 1.5 HP single-phase self-priming centrifugal pump with 2-inch suction and 1.5-inch discharge. It moves 35 to 75 GPM at 20 to 45 PSI, with a 49 PSI shutoff and a 15-foot maximum suction lift. A brass impeller and stainless wear ring suit it to lawn irrigation, water transfer and shallow well duty. It is a workhorse pump rather than a high-pressure booster, so match it to open-flow jobs.

Best for
Lawn and garden irrigation from a pond or cistern
Shallow well draw up to 15 ft
Water transfer between tanks or fields
Light agricultural and job-site dewatering
Pros
  • 1.5 HP single-phase motor runs on standard 120/240 V household power
  • Self-priming design recovers prime after a dry run without manual filling
  • Brass impeller resists corrosion better than plastic
  • Stainless wear ring holds clearance and extends service life
  • Handles water up to 180°F, useful for hot transfer lines
  • Strong 75 GPM flow for sprinkler zones and bulk transfer
Cons
  • 49 PSI shutoff is too low for tall multi-story or high-pressure systems
  • 15 ft suction lift limits deep well use
  • 1.5-inch discharge restricts flow compared with 2-inch pumps
  • No pressure switch or tank included; controls are extra
  • Brass impeller can wear on sandy or gritty water

Munro LP150B Self-Priming Centrifugal Pump prices at every store

  • IrrigationKingCheck price at IrrigationKing

Munro LP150B Self-Priming Centrifugal Pump price history

Lowest price we've seen: $1,233.70 on Nov 2 at IrrigationKing. Tracked across 1 store since Nov 2.

Specifications

Horsepower
1.5 HP
Phase
1-Phase
Discharge / Suction
1.5" / 2"
Flow Range
35–75 GPM
Operating Pressure
20–45 PSI
Shutoff Pressure
49 PSI
Max Temperature
180°F
Max Suction Lift
15 ft
Impeller
Brass
Wear Ring
Stainless Steel

Questions and answers

Is the Munro LP150B good for a shallow well?
Yes, if the water level stays within 15 ft of the pump. It self-primes and holds 35 to 75 GPM, but deeper wells need a jet or submersible pump.
Can it run a lawn sprinkler system?
It can feed most zones at 20 to 45 PSI and up to 75 GPM. Check your zone flow and pressure needs; the 49 PSI shutoff caps pressure.
Does it come with a pressure switch or tank?
No. The pump is sold as the unit only, so you add a pressure switch, tank and plumbing for automatic household-style operation.
What power does the 1.5 HP motor need?
It is single-phase, so it runs on standard residential power. Confirm the voltage on the motor nameplate and size the circuit for a 1.5 HP load.
Will it handle hot water?
It is rated to 180°F, so warm transfer water is fine. Avoid sustained temperatures above that, which can damage seals.
How does it compare with a 2-inch discharge pump?
The 1.5-inch discharge trades some peak flow for pressure. For long runs or high volume, a 2-inch pump moves more water with less friction loss.