This pilot is a drop in replacement for Spence D Pilots and offers additional improvements and design features. Their warranty performance since that time has resulted in a practically nonexistent failure rate. Each Watson McDaniel pressure pilot retrofits almost all Spence valves made in this century (and even the last). We believe Watson McDaniel pilots are by far the best way to repair and upgrade existing Spence valves for years of trouble free service. * Cast Steel Body * Replaces Cast Iron & Cast Steel 'D' Type Pressure Pilots * Blue Spring * 20-100 PSI Spring Range * Internal 60 Mesh 304 Strainer Screen * Fitting Kit Includes: (1) 1/4" Union & (1) 1/8" Pilot Tee * Stainless Steel Seat & Disc * Piping Connections same as Spence * Replaces: P-D-C1A1KS; 700121-00; P-D-C1A1MS ; 700122-00 * SKU: PP-B-SP-D Specification Sheet
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