Brand: Hunter Industries SKU: PROS-04 Product Overview The Hunter PROS-04 is a professional-grade 4-inch pop-up sprinkler body for residential and commercial spray-irrigation systems. It accepts compatible female-threaded spray nozzles and MP Rotator nozzles, allowing the installer to select the pattern, radius, and flow required for the landscape. This product is the sprinkler body only; a watering nozzle is sold separately. The PROS-04 uses a pressure-activated, co-molded wiper seal to help limit flow-by and keep debris away from the riser. A heavy-duty spring supports reliable retraction after the zone shuts off, while the two-piece ratchet allows the riser position to be aligned after installation. The included directional flush plug helps keep debris out of the body during system flushing and installation. Key Features 4-inch pop-up sprinkler body Compatible with industry-standard female-threaded nozzles Operational pressure range of 15 to 100 PSI 1/2-inch female-threaded bottom inlet Co-molded wiper seal Heavy-duty retraction spring Two-piece ratcheting riser Directional flush plug included No nozzle or pressure regulator included Common Uses Residential lawns and planting beds Commercial spray-irrigation zones Installing fixed, adjustable, specialty, or compatible rotary nozzles Replacing a matching 4-inch Pro-Spray body Compatibility and Installation Notes Select the nozzle separately according to required radius, pattern, flow, and available pressure. Connect to a compatible 1/2-inch threaded swing joint or fitting. Install the body vertically with the cap level with finished grade. This base model is not pressure regulated and does not identify a factory-installed check valve. A compatible user-installed check valve may be added where low-head drainage control is needed. Frequently Asked Questions Does the PROS-04 include a spray nozzle? No. It is a sprinkler body supplied with a flush plug. Select the compatible nozzle separately. Is the PROS-04 pressure regulated? No. Choose a PRS30 or PRS40 Pro-Spray model when in-stem pressure regulation is required. Can it use an MP Rotator? Yes. It accepts compatible female-threaded MP Rotator nozzles, but a PRS40 body is generally used when 40 PSI regulation is required for MP Rotator performance. Why Buy from Big Frog Supply? Big Frog Supply carries Hunter Pro-Spray bodies, PRS30 and PRS40 models, spray nozzles, MP Rotators, swing joints, and irrigation repair components.