We now offer a wide variety of plastic end caps in several styles, finish and sizes. The rigid and semi-rigid end caps can be made to fit slightly smaller sizes than those specified in the "Inside Diameter" column with the use of weather stripping easily found in hardware stores (not included).
If the size you need is not listed in the table below, then we do not carry it.
To see photos of the various end cap types, please click on the "Zoom" button above.
Key for end cap Type:
* R = Rigid (Stiff end caps typically use for telescope dewshields and larger binoculars)
* SR = Semi-Rigid (The most common type of semi-stiff end caps typically provided with eyepieces, finders, binoculars, etc.)
* F = Flexible (After-market end caps commonly used for pipe fittings, but work very well for astronomy equipment too)
Item
| Inside Diameter (")
| Inside Diameter (mm) | Inside Depth
(")
| Inside Depth
(mm) | Type
| Color/Finish
| Comments*
| GW24.5
| 0.965 | 24.5 |
|
| F | Black | Barrel end of 0.965" eyepieces/accessories
| | SS31.7 |
1.25
| 31.7
| 0.24
| 6
| SR
| Black
|
* Discontinued * Barrel end of 1.25" eyepieces/accessories |
DC31.7
| 1.25
| 31.7
| 0.55
| 14
| SR
| Black | "
| | GS31.7 | 1.25 | 31.7 |
|
| SR
| Milky-White | "
| GW31.7
| 1.25 | 31.7 |
|
| F
| Yellow | "
|
| DC32 |
1.26 |
32 |
|
|
SR |
Black |
|
| DC33.7 |
1.33 |
33.7 |
0.47 |
12 |
SR |
Black |
|
GW35.5
| 1.40
| 35.5
|
|
| F
| Yellow
|
Older Meade, Orion and other generic Plossls, Nagler 4.8mm, GSO 1.25" SuperViews |
| DC36 | 1.42 | 36 | 0.28 | 7 | SR | Black | "
| DC37.5
| 1.48
| 37.5
| 0.51
| 13
| SR | Black |
| GW38
| 1.50
| 38
|
|
| F
| Yellow
| Nagler Type 6, Takahashi LE and Vixen LV eyepieces | SS40
| 1.57
| 40
| 0.31
| 8
| SR | Black | * Discontinued *
| GW42
| 1.65
| 42
|
|
| F
| Yellow
| Male T ring threads and Vixen Lanthanum Superwide eyepieces | DC48
| 1.89
| 48
| 0.35
| 9
| SR
| Black | Meade Ultrawide 8.8, 14mm (previous Japanese made version), all
Radians, Panoptic 41,35,27,22mm, Nagler Type 4 22,17,12mm, Nagler Type
5 31,26mm, TV Plossl 50,40,32mm, Meade QX 26,36mm |
GW48.2
| 1.90
| 48.2
|
|
| F
| Yellow
| "
| GWSCT
| 1.90 | 48.2 |
|
| SR
| Red
| For SCT Visual Backs
|
| GS48.5 |
1.91 |
48.5 |
0.39 |
10 |
SR |
Black |
GSO 2" SuperViews |
| ZH50.8 |
2.00 |
50.8 |
0.31 |
8 |
SR |
Black |
|
GS50.8
| 2.00
| 50.8
|
|
| SR
| Milky-White
| Barrel end of 2" eyepieces/accessories | GW50.8
| 2.00
| 50.8
|
|
| F
| Yellow
| "
|
| DC51.5 |
2.03 |
51.5 |
0.31 |
8 |
SR |
Black |
|
| GS56 |
2.17 |
56 |
0.79 |
20 |
SR |
Milky-White |
|
DC58
| 2.28
| 58
| 0.35
| 9
| SR
| Black |
|
SS70
| 2.76
| 70
| 0.35
| 9
|
R
| Black
|
| DC76
| 2.99
| 76
| 0.47
| 12
| SR
| Black |
| | DC83 | 3.27 | 83 | 0.43 | 11 | SR | Black |
| DC84
| 3.30
| 84
| 0.47
| 12
|
R
| Black |
| DC85.8
| 3.38
| 85.8 | 0.55 | 14 | SR | Black |
| | DC95 | 3.74 | 95 | 0.47 | 12 | SR | Black |
| DC100
| 3.94
| 100
| 0.75
| 19
| SR
| Black | Discontinued
|
| DC116 |
4.57 |
116 |
0.31 |
8 |
R |
Black |
Discontinued Has a central opening of 53mm capped with an extra end cap; great for making a solar filter |
| DC137.2 |
5.40 |
137.2 |
0.51 |
13 |
R |
Black |
Discontinued
|
| DC143 |
5.63 |
143 |
0.51 |
13 |
R |
Black |
Has a central opening of 53mm capped with an extra end cap; great for making a solar filter |
DC150
| 5.91
| 150
| 0.39
| 10
| R
| Black
|
|
| DC165 |
6.50 |
165 |
0.51 |
13 |
R |
Black |
Discontinued |
DC195
| 7.68
| 195
| 0.67
| 17
| R
| Black
| Metal, not plastic. Also, has an off-axis opening of 51mm capped with an extra plastic end cap. The edge of this smaller aperture is 23mm from the edge of the metal cap. Great for making a solar filter |
* Suggested. However, we are not responsible for ensuring a perfect fit. For this, please be sure to measure your equipment and select the appropriate size based on the information provided above.
Prices below include FREE SHIPPING within the US via USPS First Class Mail
| Item# |
Item Name |
Our Price |
Qty |
Add |
| EC01-GW-24.5 |
End Cap 01 - 0.965" (24.5mm)
Yellow, Flexible |
$1.00 |
|
|
| EC03-DC-31.7 |
End Cap 03 - 1.25" (31.7mm)
Black, Semi-Rigid |
$1.75 |
|
|
| EC04-GS-31.7 |
End Cap 04 - 1.25" (31.7mm)
Milky-White, Semi-Rigid |
$2.25 |
|
|
| EC05-GW-31.7 |
End Cap 05 - 1.25" (31.7mm)
Yellow, Flexible |
$1.00 |
|
|
| EC06-DC-32 |
End Cap 06 - 1.26" (32mm)
Black, Semi-Rigid |
$1.75 |
(Out of Stock) |
| EC07-DC-33.7 |
End Cap 07 - 1.33" (33.7mm)
Black, Semi-Rigid |
$1.75 |
(Out of Stock) |
| EC08-GW-35 |
End Cap 08 - 1.375" (35mm)
Yellow, Flexible |
$1.25 |
|
|
| EC09-DC-36 |
End Cap 09 - 1.42" (36mm)
Black, Semi-Rigid |
$1.75 |
|
|
| EC10-DC-37.5 |
End Cap 10 - 1.48" (37.5mm)
Black, Semi-Rigid |
$1.75 |
|
|
| EC11-GW-38 |
End Cap 11 - 1.5" (38mm)
Yellow, Flexible |
$1.50 |
|
|
| EC12-GW-42 |
End Cap 12 - 1.625" (42mm)
Yellow, Flexible |
$1.50 |
|
|
| EC13-DC-48 |
End Cap 13 - 1.89" (48mm)
Black, Semi-Rigid |
$2.50 |
|
|
| EC14-GW-48 |
End Cap 14 - 1.875" (48mm)
Yellow, Flexible |
$1.75 |
|
|
| EC15-GW-SCT |
End Cap 15 - For SCT Visual Back
Red, Semi-Rigid |
$2.00 |
|
|
| EC17-GS-48.5 |
End Cap 17 - 1.91" (48.5mm)
Black, Semi-Rigid |
$3.00 |
|
|
| EC19-ZH-50.8 |
End Cap 19 - 2" (50.8mm)
Black, Semi-Rigid |
$2.75 |
|
|
| EC20-GS-50.8 |
End Cap 20 - 2" (50.8mm)
Milky-White, Semi-Rigid |
$3.00 |
|
|
| EC21-GW-50.8 |
End Cap 21 - 2" (50.8mm)
Yellow, Flexible |
$1.80 |
|
|
| EC22-DC-51.5 |
End Cap 22 - 2.03" (51.5mm)
Black, Semi-Rigid |
$3.00 |
|
|
| EC23-GS-56 |
End Cap 23 - 2.17" (56mm)
Milky-White, Semi-Rigid |
$3.00 |
|
|
| EC24-DC-58 |
End Cap 24 - 2.28" (58mm)
Black, Semi-Rigid |
$3.25 |
|
|
| EC25-SS-70 |
End Cap 25 - 2.76" (70mm)
Black, Rigid |
$3.25 |
|
|
| EC27-DC-76 |
End Cap 27 - 2.99" (76mm)
Black, Semi-Rigid |
$3.25 |
|
|
| EC30-DC-83 |
End Cap 30 - 3.27" (83mm)
Black, Semi-Rigid |
$3.75 |
|
|
| EC31-DC-84 |
End Cap 31 - 3.30" (84mm)
Black, Rigid |
$3.75 |
|
|
| EC32-DC-85.8 |
End Cap 32 - 3.38" (85.8mm)
Black, Semi-Rigid |
$4.25 |
|
|
| EC33-DC-95 |
End Cap 33 - 3.74" (95mm)
Black, Rigid |
$5.25 |
|
|
| EC35-DC-100 |
End Cap 35 - 3.94" (100mm)
Black, Semi-Rigid |
$5.25 |
(Out of Stock) |
| EC36-DC-116 |
End Cap 36 -4.57" (116mm)
Black, Rigid |
$7.50 |
(Out of Stock) |
| EC38-DC-137.2 |
End Cap 38 - 5.40" (137.2mm)
Black, Rigid |
$9.00 |
(Out of Stock) |
| EC39-DC-143 |
End Cap 39 - 5.63" (143mm)
Black, Rigid |
$10.50 |
|
|
| EC41-DC-150 |
End Cap 41 - 5.91" (150mm)
Black, Rigid |
$11.50 |
|
|
| EC42-DC-165 |
End Cap 42 - 6.50" (165mm)
Black, Rigid |
$12.50 |
(Out of Stock) |
| EC44-DC-195 |
End Cap 44 - 7.68" (195mm)
Black, Rigid, Metal |
$13.50 |
|
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| Check the items you wish to purchase, then click
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