Amazon.com : Industrial Grade 1.25inch Filter Set 6 Color Filters with Storage Bag Spare Part Moon & Star Durable Photographers : Electronics
6.6x6.6" MPTV Filters – The Tiffen Company
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Tiffen 6.6x6.6" CC30G Green Color Compensating (30G) Filter MFR # 6666CC30G | eBay
86mm MCUV Protection Filter UV Filter for 86mm Camera Lens - KENTFAITH
Tiffen 6.6x6.6" CC30G Green Color Compensating (30G) Filter MFR # 6666CC30G | eBay
Tiffen 6.6x6.6" CC30G Green Color Compensating (30G) Filter MFR # 6666CC30G | eBay