Comparison : |
Item # NLK975F, GD-6865-4N/8N - Butterfly Valve - Ductile Iron, Fire Protection, 350 PSI Item # NLK975K, GD-6865-4N/8N - Butterfly Valve - Ductile Iron, Fire Protection, 350 PSI Item # NLK985F, GD-6865-4N/8N - Butterfly Valve - Ductile Iron, Fire Protection, 350 PSI Item # NLK985K, GD-6865-4N/8N - Butterfly Valve - Ductile Iron, Fire Protection, 350 PSI Item # NLK957E, GD-6865-4N/8N - Butterfly Valve - Ductile Iron, Fire Protection, 350 PSI
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