2" 5400 series with plastic nozzle. Ideal for use in residential and commercial landscapes. Durable, noncorrosive plastic construction. 1/2" FNPT connection. Brass flow adjustment screw. Stainless steel retraction spring. 2-1/8" pop-up clearance. Inlet filter basket prevents debris from clogging nozzle. 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. Extra heavy cap and heavy-duty ABS canister. Hard tops on select heads reduce mower damage.