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Close-up of Weathermatic B18-H milled brass half-circle spray nozzle showing 180° arc and 18 ft radius; female threaded inlet visible.

Weathermatic B18-H Brass Spray Nozzle, 18 ft Radius, 180°

Brand: Weathermatic
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$11.76
$6.62
SKU B18-H

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The Weathermatic B18-H is a precision milled-brass spray nozzle (originally part of the 5500 series) engineered for consistent, matched precipitation across an 18 ft radius and a half-circle 180° arc. Its mill-cut design produces fine, uniform droplets that fall closer to the head for improved coverage and water efficiency.

  • Model: B18-H (B-Series, formerly 5500).
  • Material: Milled brass construction for durability and long service life.
  • Radius & Arc: 18 ft radius; 180° (half-circle) spray pattern.
  • Performance: Designed for low-pressure, efficient operation—optimal performance around 20 psi; operating range typically 20–30 psi; max 30 psi.
  • Connection & Compatibility: Industry-standard female threads; fits Weathermatic LX sprayheads, LXS, 72/73 shrub adapters and most standard spray head risers.
  • Water Management: Matched precipitation rates between arcs for uniform coverage and simplified head-to-head spacing.
  • Maintenance: Single-port brass design resists clogging; can be cleaned in place without risk of damage.

Use the B18-H to upgrade existing spray heads or to specify reliable, long-lasting coverage in new installations. For design reference and nozzle charts, consult the manufacturer’s Brass Nozzles catalog sheet and B-Series technical documentation. The B-Series is identical to the former 5500 line and is widely used where uniform precipitation and durability are required.

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Frequently Asked Questions

What radius and spray arc does the B18-H provide?
The B18-H is a half-circle nozzle with an 18 ft radius and a 180° spray arc.
What operating pressure works best for this nozzle?
Optimal performance is around 20 psi; typical operating range is 20–30 psi for consistent coverage.
What thread size and heads is the B18-H compatible with?
It uses industry-standard female threads and fits LX sprayheads, LXS, 72/73 shrub adapters and most standard risers.
How should I maintain or clean this brass nozzle?
Single-port brass nozzles resist clogging; clean in place or remove and rinse—avoid abrasive tools to protect the milled pattern.