Best Filter Substrate

8\x8\ Solar Filter Sheet for Telescopes, Binoculars and Cameras

  • Silver - Black polymer is the most common filtering material for observing sunspots and granulation, through telescopes and binoculars..
  • These sheets are a quality product of Thousand Oaks Optical, Arizona, a manufacturer of safe solar filters for over 30 years. "Stronger than Mylar with the filtering properties protected within the substrate. Guaranteed five years.".
  • Make a filter on your own for any telescope / binoculars / camera, and for a fraction of what factory made filters cost..
  • The sun will appear in a natural orange color when viewed through your telescope using this filter..
  • WARNING: ALWAYS MAKE SURE THE FILTER IS WELL ATTACHED TO THE TELESCOPE/BINOCULARS, USING STICKY TAPE, TO KEEP IT FROM FALLING WHILE OBSERVING!.
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Boomr Bag (5 lbs) Sterile Manure-Based Bulk Mushroom Substrate | Premium Horse Manure Blend | Grow Bigger Flushes w/ Maximum Yield Formula | Handmade by Expert Mycologists in Maine, USA | North Spore

  • GROW BIGGER FLUSHES: Our best-selling Boomr Bag is a sterile manure-based bulk mushroom substrate formulated by mycologists to maximize your mushroom yield. Use Boomr Bag in monotubs, filter bags, and outdoor beds. Or, grow mushrooms from the bag or tray in a humidity-controlled grow room or Martha set up..
  • PERFECTED FOR DUNG-LOVING SPECIES: It features a proprietary blend of composted horse manure, coco coir, and several quality substrate supplements (although we keep the exact blend a secret!).
  • MIX WITH COLONIZED GRAIN SPAWN: We recommended 1 lb of colonized grain spawn for every 5 lbs of Boomr Bag sterile substrate. (Higher inoculation rates may improve your success.).
  • STORE UNTIL READY: Boomr Bags can be stored for several months before use. They should be stored at room temperature out of direct sunlight. No refrigeration necessary..
  • TRUSTED BY GROWERS: Our Boomr Bags are sterilized in a commercial-grade autoclave. Sterility is verified using biological indicators and temperature sensors..
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Thousand Oaks Optical 4\x4\ Solar Filter Sheet for Telescopes, Binoculars and Cameras

  • Make a filter on your own for any telescope / binoculars / camera, and for a fraction of what factory made filters cost..
  • The sun will appear in a natural orange color when viewed through your telescope using this filter..
  • WARNING: ALWAYS MAKE SURE THE FILTER IS WELL ATTACHED TO THE TELESCOPE/BINOCULARS, USING STICKY TAPE, TO KEEP IT FROM FALLING WHILE OBSERVING!.
  • Silver - black polymer is the most common filtering material for observing sunspots and granulation, through telescopes and binoculars..
  • These sheets are a quality product of Thousand Oaks Optical, Arizona, a manufacturer of safe solar filters for over 30 years. "Stronger than Mylar with the filtering properties protected within the substrate. Guaranteed five years.".
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Mushroom Monotub Kit- Mushroom Grow Kit for Mushroom Fruiting ，with Filter and Plug， Mushroom Grow Bags is Inflatable， Easy to Store and Clean

  • （Scientifically Designed） – a Monotub that Conforms to Mushroom Growth, 10 Vents for Fresh air Exchange, Compact top lid for Optimal Moisture Retention，a Convenient Drain to Dispose of Excess Water after Substrate Rehydration, Can be cleaned and deflated when not in use Reusable.
  • (High quality accessories) – Monotub With Plug and two Different Densities Filter for Fruiting Stage, Temperature and Humidity can be Controlled According to the Filter of Different Densities.
  • （Appearance） – The Transparent PVC Mushroom Monotub Enables you to Observe the Mushroom Growing Process, the Thick PVC Structure is Durable, the Inflation and Deflation are Easy to Operate.
  • This is a small-yield Mushroom Monotub that meets your needs for growing Mushrooms at home.
  • (Product Contains) 1*Monotub, 1*air Pump, 10* Plug, 10* low Density Filter, 10 High Density Filter.
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SVBONY SV132 Telescope Filter H-Beta Filter 25nm 1.25 inches Eyepiece Filter for Horsehead Nebula California and Cocoon Nebulae in Dark Skies

  • SV132 H-Beta eyepiece filter makes it possible to view the elusive Horsehead, California, and Cocoon Nebulas in dark skies.
  • Great used with a moderate to large aperture telescope and clear dark skies.
  • Optical high precision double side polishing.
  • Filter substrate is fine-optically polished to 1/4 wave and.
  • Precision double-sided optical coatings improve transmission and cut-off depth.
  • Executes with a transmission of over 90% and completely rejects light pollution.
  • High value transmission of pass-band and optical density of off-band is assured through planetary rotation system, a homogenous and precise coating procedure.
  • The high optical quality of SV132 filters guarantees no loss in sharpness or contrast.
  • Filter with metal mount 1.25" filter threads.
  • Threaded to fit 1.25" eyepieces and threaded diagonal barrels.
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Seachem Flourite Black Clay Gravel - Stable Porous Natural Planted Aquarium Substrate 15.4 lbs

  • GRAVEL: Seachem Flourite Black is a specially fracted stable porous clay gravel for the natural planted aquarium. Its appearance is best suited to planted aquaria, but may be used in any freshwater aquarium environment..
  • AQUARIUM BED: Gravel modifiers such as laterite are not necessary when using Seachem Flourite Black as this product is most effective when used alone as an integral substrate bed, but it may be mixed with other gravels..
  • SET-UP: When adding water to the aquarium, fill slowly to avoid disturbing Flourite Black substrate bed. Place a bowl in the aquarium and add water directly to the bowl, allowing water to overflow softly on to the gravel bed. Initial cloudiness is normal, but to remove this simply use mechanical filtration.
  • COMPATIBLE: Flourite Black substrates will work fine with an under gravel filter and will not soften or decompose to an unsuitable state within your tank.Flourite substrates will work fine with an UGF.
  • SAFETY: Seachem Flourite Black is not chemically coated or treated, thus does not alter the pH of the water. Flourite Black is beneficial for the life of the aquarium and need not be replaced..
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Blue Light Blocking Glasses Women Bluelight Blocker Computer Cateye Clear Cat Eye Eyeglasses Frame Pink ANDWOOD

  • 【SUBSTRATE ANTI-BLUE LIGHT LENS】 - ANDWOOD blue blocker glasses women are use substrate anti-blue light lens: Filter high level blue light from digital screen of computer, phone and TV,maintain HD clear vision with less color distortion..
  • 【EYEGLASSES PROTECTION FOR YOUR EYES】 - These blue light blocking glasses for women alleviates visual fatigue and discomfort from long periods of web surfing, gaming and working under fluorescent lights with UV400 protection can effectively block 100% harmful UV rays and glare reduction..
  • 【METARIAL AND DESIGN】 - This bluelight glasses womens is made light weight plastic frame with anti-blue light polycarbonate lens, spring hinge provide you comfort fit. Cat eye design for women shine you style out. Best Gift for your eyes' health!.
  • 【SLEEP BETTER】- Wearing these computer glasses women while viewing your digital screens at night may help encourage melatonin production, which can help you maintain normal sleeping patterns..
  • 【Blue Light Glasses Cateye】 - Bring it anywhere: Take these gaming glasses with you to school or at work. The blue light blocking glasses come with a leather case, which will fit easily in your bag, car, or backpack..
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JJC Multi-Coated 46mm UV Filter for Nikon Z30 Z50 Z fc Zfc with Nikkor Z DX 16-50mm Kit Lens for Panasonic G7 with Lumix G Vario 14-42mm Kit Lens & Other Lenses with 46mm Filter Thread

  • Helps absorb ultraviolet light and reduce the bluish cast of daylight.
  • Helps reduce dust, moisture, and scratches from reaching lens elements.
  • Crafted from 0.03" Japanese famous optical glass, double sides 12-layers of multi-resistant coating prevents internal ghosting and reflections while providing over 99.5% light transmission.
  • 12-layers of multi-resistant coating also offers greater protection to the filter substrate and helps it to stay clean for longer than with uncoated UV filters.
  • Ultra slim design (only 0.12" thick) to avoid vignetting on wide angle lenses.
  • 1x filter factor, adjustments to exposure time are not required, unlike other types of filter such as CPL filter, ND filter,etc..
  • Useful as a basic protective filter to leave on lenses at all times.
  • Compatible with any lens with 46mm diameter filter thread - This UV filter is double threaded, has 46mm inner thread(male) and 46mm outer thread(female), this design allows you to put on any 46mm thread accessories such as lens cap, screw-in type lens hood to the front of the filter.
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NICREW Power VAC Plus Electric Gravel Cleaner, Automatic Aquarium Cleaner with Sponge Filter, 3 in 1 Aquarium Vacuum Gravel Cleaner for Medium and Large Tanks

  • 3-in-1 unit for quick cleanups or complete aquarium maintenance.
  • Sponge filter traps debris while remaining easy to clean.
  • Decreases the build-up of harmful toxins in your aquarium while reducing strain on your filter.
  • Easily removes particles from topmost layer of substrate without disturbing the bottom layer of gravel.
  • Equipped with flow adjustment valve to adjust the water flow rate (1/2" or 5/8" hose is NOT included).
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