The 5400 series side strip pattern spring-loaded pop-up sprinkler head provides uniform coverage and long-lasting performance. For medium size yards, sprinkler heads spaced 10' to 15' apart. Durable plastic nozzle with flow adjustment. Molded, pressure activated wiper seal prevents leaks, seals the pop-up, and keeps out sand and grit. Wiper seal also stops excessive flow-by and cleans the stem upon completion of watering. Factory installed dual-port flush plug provides for easy clean out and access to nozzle installation. Anti-drain check valve keeps water from draining onto sidewalks, creating slippery hazards or wasting water. Ratchet feature allows easy spray direction adjustment, even when the water is on.