Duende Criatura 36 - 39 mm (Pair)
Fitting for: 6L6GC, Russian 5881, KT90, etc.
Please Note: Incompatible with the JAN-Philips 6L6WGB and USA made 5881 tubes (requires 32 - 36 mm version)
Contact us if you have any questions about what size your tubes require!
Warranty Information and Return PolicyWarranty Period: 3 months
All our tubes are guaranteed for 3 months from the date of purchase. (Any exceptions will be noted on that tube's Warranty tab)
If you receive a tube that does not perform to the manufacturer's specifications, please do the following:
- contact us to get a return authorization
- return it via regular mail within 90 days from when we shipped it, and we will provide an exchange or refund of the full purchase price of the tube.
Returns not related to warranty or defect will be considered at our discretion, and are subject to a 15% restocking fee.
We can not accept returns that don't have an authorization, are past 3 month, or are returned improperly.
These guidelines may be updated without notice.