Sprinkler Riser 1/2x2-1/2in Orbit 37017 Cut-Off Extension Black Polyethylene (4-PACK) The Orbit 37017 cut-off sprinkler riser extension is a versatile, UV-resistant HDPE (high-density polyethylene) component engineered to raise and adjust the height of spray heads, impact rotors, or gear-drive sprinklers as landscapes mature or ground levels change. Measuring 1/2 inch in diameter and 2-1/2 inches in length, this black riser features male NPT threads on both ends and includes incremental 1-inch threaded sections ? allowing you to easily cut it to your desired height for a custom fit without needing additional adapters. Designed for lateral line use, its durable polyethylene construction resists cracking, corrosion, and sun damage ? ensuring long-term performance in exposed or buried applications. Compatible with Orbit, Hydro-Rain, and other major sprinkler brands, it?s ideal for repairs, system upgrades, or new installations where precise head height is critical for optimal spray coverage and turf health. Weighing just 0.384 ounces (0.02 lbs) and measuring 3 x 1 x 2 inches, it?s lightweight and compact for easy handling and storage. Although discontinued by the manufacturer, remaining stock delivers the same trusted Orbit quality ? making it a practical, cost-effective solution for irrigation professionals and DIY landscapers. Features - 1/2? x 2-1/2? cut-off riser ? raises sprinkler heads to maintain proper spray height as turf grows - UV-resistant HDPE construction ? withstands sun exposure and underground conditions without cracking - Male NPT threads on both ends ? compatible with standard sprinkler bodies and fittings - Cut-to-fit design ? 1-inch threaded increments allow custom height adjustment without extra parts - Ideal for spray heads, impact rotors, and gear-drive sprinklers - Compatible with Orbit, Hydro-Rain, and other major irrigation brands - Lightweight at 0.384 oz ? easy to carry, install, and store - Dimensions: 3 x 1 x 2 inches ? compact for toolbox or service vehicle storage - Eliminates low-head drainage and improves spray uniformity - Made by Orbit ? trusted for durable, innovative irrigation solutions Specifications - Brand Name: Orbit - Model: Orbit 37017 - Part Number: 37017 - UPC: 046878370173 - Global Trade Identification Number: 00046878370173 - Product Type: Sprinkler Riser Extension - Material: Polyethylene (UV-Resistant HDPE) - Color: Black - Connection Type: NPT (Male x Male) - Thread Size: 1/2 inch - Thread Type: Plastic NPT - Length: 2-1/2 inches (cuttable in 1-inch increments) - Item Weight: 0.384 oz (0.02 lbs) - Product Dimensions: 3 in L x 1 in W x 2 in H - Included Components: 1 Riser Extension - Item Package Quantity: 1 - Power Source: Not Applicable (Irrigation Component) - Manufacturer: Orbit - Country of Origin: United States Product Application The Orbit 37017 riser extension is engineered for irrigation technicians and homeowners maintaining or upgrading in-ground sprinkler systems. As grass grows or soil settles, sprinkler heads can become recessed ? leading to poor coverage, dry spots, or turf damage from mower blades. This riser solves that by allowing precise height adjustment to keep heads flush with the surface. Its cut-to-fit design eliminates guesswork and reduces the need for multiple fittings, while its UV-resistant material ensures durability whether installed above or below grade. A small but essential component that enhances system efficiency, extends equipment life, and keeps landscapes lush and evenly watered.