Hunter PROS04CV 4" Pro-Spray with Check Valve Hunter Pro-Spray sprinkler heads are engineered to ensure long-lasting, reliable performance in residential applications. Available in heights from shrub to 12”, Pro-Spray heads feature durable construction that is second to none, exclusive body cap design which does not leak even when loosened, and a reliable, easy to adjust two-piece ratchet. Pro-Sprays are compatible with Pro Adjustable Nozzles, Pro Fixed Nozzles, and MP Rotators. All models also include a user-friendly pull-ring flush cap to keep debris and clogging to a minimum. The Hunter Pro-Spray sprinkler head is compatible with all industry standard female nozzles offering a high degree of flexibility.