Nature2 W29300 Spa Test Strips, 50 Count (84235) more Low-profile half facepiece design is

Low-profile half facepiece design is compatible with many welding and grinding shields

V-GARD VISOR VERSATILITY: These V-Gard visors are designed for complete compatibility with the full line of V-Gard Frames and V-Gard Headgear

Fits Pentair Nautilus Plus pool and spa D

WON'T FADE FABRICS: The soft water is more gentle and won't fade fabrics like traditional chlorine pools

Also available with a ratchet headgear for use where space limitations are not as severe

Nature2 W29300 Spa Test Strips, 50 Count (84235) more Low-profile half facepiece design isNature2 W29300 Spa Test Strips, 50 Count (84235) Instant readings of the most vital components to proper spa chemistry.