ScubaSpec Mask Prescription Insert 137 EBP
ScubaSpec Mask Prescription Insert 137 EBP
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The 137 EBP Scuba Spec, or Snorkel Spec, is a prescription spectacle insert specifically designed for the visually deficient diver. The 137 EBP Scuba Spec attaches to the mask faceplate via a suction cup and can be easily inserted or removed from the mask at the diver’s discretion. The same prescription powers used in the diver’s habitually worn glasses can be used in the Scuba Spec insert (single or bifocal vision).
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- A: distance across center of lens = 42.6 mm (1.68 in)
- B: height from top to bottom of lens = 47.7 mm (1.88 in)
- ED: diagonal measurement of lens = 51 mm (2 in)
- DBL: length of bridge = 30 mm (1.18 in)
- HT: height of frame (including anchor bracket) = 50 mm (1.97 in)
- L: length of frame = 120 mm (4.72 in)
- C: diameter of suction cup = 32 mm (1.26 in)
- Circ: circumference of lens = 148.3 mm (5.83 in)
- Wt: weight of insert without lenses = 5.7 g (0.2 oz)
Sizing Information:
If you look at the description on most product descriptions, we have the "eyesize" measurements. Glasses are not measured in sizes like clothes or shoes. Frames can fit differently on each person's nose or ears. The best option is to try for fit. But you can use the "eyesize" to give you an idea of size. You can double the "A" measurement, add the DBL (nose bridge) and get an approximation of width. However, if the glasses are wrap around, the "eyesize" will be bigger since it wraps around the sides. Thus, comparing the eyesize of your regular glasses doesn't always work. If you are unsure about size, you can also contact us for a recommendation. For more information on how eyesize works, check out our eyesize video.
What is a "PD"
PD (pupil distance) tells us how to center the "sweet spot" of the prescription right in front of your pupil for the best vision. If this is not on your prescription, you can contact wherever you made glasses (not necessarily your eye doctor) to get this information. Or see below on how to measure yourself.
What is "Add"
Add is your reading prescription power. If you wear bifocals or progressives, you will need this. If you don't wear bifcoals or progressives (typically people over 40) then you can skip this.
Prescription Lens Options
Need help navigating all the lens types and lens options? See a full description of options, tints and coatings on our lens options page.
How long will it take?
No prescription or premade prescription options ship in 1-5 business days. Call,chat or email to check stock if you need it faster.
Prescription products take on average about 7 to 10 business days. Coatings can add an extra week. HIgh prescriptions can take extra time as well. Some brands also take longer. See each product page for estimated timelines.
For shipping times, see our shipping page.
Return policy
See our return policy here
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