SOLD--This is a 10" Thousand Oaks Type 2+, Full aperture, Solar Filter. It has an inside cell diameter of 10 5/8". The filter is in excellent condition. It retails new for $149. I'm selling for $115 - including shipping. I will accept Money order or personal check. I will also accept Paypal, but there is an additional charge of $3.00 (total $118) to offset the Paypal fee.