What is the actual size of the round adaptor?
791891
The cap has an I.D. of 3-1/8". The conical gasket top part is 3- 1/8' and tappers down to about 7/8". The gasket is about a 1/2" thick
2259944
About 1.5", but don't buy these. They have a design flaw that causes the adapter to short when you screw in the light bulb. Read through the reviews.
2110415
I'm not really sure but...It appears to fit MOST items with the 2 round hole connector...sorry I can't be more of help...
2270568
Yes, the round adapter sits to the left of the arm at the base. It just lifts out and you use it.
1358291
do you have an estimate how wide the valve core is..i can measure the dia of the fattest adapter
1664678
Not sure, it comes with a bunch of different adapters to fit most models though
1179312
The adapter is made of metal (cast aluminum?). The knob is 12 mm (approx. 7/16 in.) in diameter. The cylindrical section is 13 mm.
432258
when i got mine they included an adapter to change the 3 3.5mm jack to the red/white rca plugs. it was about a 1.5-2.5 inch square
924060
5cm diameter (circular), fits PXC-250 and PX 200-II. Has a tight, snug fit when installed correctly.
1769113
The straight extension cable total length is: 48 inches (including the bullet connectors). The "Y" adapter is about: 12 inches long (including the bullet connectors).
2105877
I believe it's 4" round. My post was 3.5" so I got a black rubber hose connector for plumbing, slipped it in the top of the post and then this lamp fit perfect! You don't see the connector either.
1071817
This set of adaptors consists of a 1/4" to 3/8", a 3/8" to 1/4", a 3/8" to 1/2", and 1/2" to 3/8" If this set is ordered you will receive all four adaptors, not just one.
598482
The round cover is 5" dia, fits over standard 4" electrical mount. The crossbar mounts to the round cover after it is attached to the electrical mount.
1832089
Don't know, but the adapter's sized fittings did not fit for the items we specifically got it for.
351961
The mounting adapter is round; the existing opening is rectangular. Don't see how that would solve the problem without creating another one.
860537
The adapter fits around the outer casing of the light. All you have to do is make sure the dimensions of the adapter are appropriate for your light. They are circular and come in 2 different sizes: 4" and 6" spring rings. I hope this answers your question.
1331863
Here is the description from the Amazon site. Metal 1/4" to 3/8" Convert Screw Adapter for Tripod Monopod Ballhead.