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Brandnames: GP20 Aspheric (David Thomas), Hydron GP20/GP50 (David Thomas)


Product NameDT GP20 Aspheric
Wear ModeDaily Wear Spherical
Design FeaturesF.S: Lentic. B.S: Multi-Aspheric. CCEL. Two Degrees of Asphericity available: Standard or Flat. Large Optic Zone. Constant Rounded Edge Thickness - 0.10EL. Old Hydon Design. Silicon/Acrylate Co-Polymers see Other Info*
MaterialsFocon 4b
BOZR From7.2
BOZR To8.4
BOZR Steps0.05
Tot Diam From9.2
Tot Diam To9.7
Tot Diam Steps0.50 Steps.
Sph Pwr From-20
Sph Pwr To20
Sph Pwr Steps0.25/0.50 beyond +/- 10.00
Locn Marks/engravingsEngraving possible
BOZD From9.99
BOZD To9.99
FOZD From9.99
FOZD To9.99
Tc @ -3.000.15
Recquired Replacement999 Month
Other Info* GP50 DK 54 WA 26 available. David Thomas Ltd, Tel 01604 646216